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refactor(ui): One QML file per screen; the HDMI boost's setup screens and backend commands removed
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@@ -1,37 +1,22 @@
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#!/bin/bash
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# "HDMI refresh boost" menu item, Steam Machine (Fremont) only: finds the
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# highest refresh rate the display runs at the desktop resolution over HDMI,
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# tests it live and saves an EDID override per display, loaded only while
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# that display is connected (see hdmi_install_hotplug). Two things keep displays below what they can do:
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# - Monitors put their fast modes in an extra EDID block (HDMI Forum EEODB);
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# the pinned kernel (7.1.6) only reads the first extension. Newer kernels
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# do, and do HDMI 2.1, so it's only offered with the pinned kernel.
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# - Their fastest modes need HDMI 2.1 (FRL), which amdgpu doesn't do on
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# every kernel; a mode with the display's shortest blanking at a slightly
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# lower rate often still fits HDMI 2.0's TMDS limit (600 MHz).
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# What a display claims isn't what it accepts: every step is shown and must
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# be confirmed, and no answer within 15 s switches back (the screen may be
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# black). Sourced by steamify.sh; not meant to be run on its own.
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# "HDMI refresh boost" menu item (hdmi), retired in 2.2.0: it saved an EDID
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# override per display (with a hotplug script loading it) so the pinned
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# 7.1.6 kernel ran HDMI displays above 60 Hz. Newer kernels read the whole
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# EDID themselves, and the kernel pin is gone with the power-off fix, so
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# only its removal is left: shown while anything of it is on the system,
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# always unticked, so a normal run removes it.
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# Sourced by steamify.sh; not meant to be run on its own.
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HDMI_FW_DIR=/usr/lib/firmware/edid
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# Before 2.1.0 the override was on the kernel command line; only removed now.
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# Before 2.1.0 the override was on the kernel command line.
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HDMI_INITRAMFS_CONF=/etc/mkinitcpio.conf.d/90-steamify-edid.conf
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# The saved displays, one per line: <id> TAB <name> TAB <w>x<h> TAB <rates>.
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# Their EDIDs are $HDMI_FW_DIR/steamify-<id>.bin.
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# The saved displays; their EDIDs are $HDMI_FW_DIR/steamify-<id>.bin.
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HDMI_MAP=/etc/steamify/hdmi-edid.conf
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# Per output, the ID of the display whose EDID is loaded, or "reset".
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HDMI_RUN=/run/steamify-edid
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HDMI_HOTPLUG=/usr/local/bin/steamify-edid-hotplug
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HDMI_UNIT_NAME=steamify-edid.service
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HDMI_UNIT="/etc/systemd/system/$HDMI_UNIT_NAME"
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HDMI_UDEV_RULE=/etc/udev/rules.d/90-steamify-edid.rules
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# No answer within this time switches back; longer for scripted tests.
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HDMI_CONFIRM_SECONDS="${WIZARD_HDMI_CONFIRM_SECONDS:-15}"
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# amdgpu's HDMI 2.0 limit; the display's own limit (from its EDID) may be lower.
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HDMI_TMDS_MAX_KHZ=600000
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# Rates picked and tested in the app ("<output>=<w>x<h>:<rate>,..."), set by
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# the backend's apply --hdmi; empty in the terminal menu, which tests itself.
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HDMI_CHOICE=()
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hdmi_connectors() {
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# Connected HDMI outputs, as "<card>-<connector>" (e.g. card1-HDMI-A-1).
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@@ -55,307 +40,29 @@ hdmi_cmdline_param() {
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[[ -n "$f" ]] && grep -oE 'drm\.edid_firmware=[^ "]*steamify-[^ "]*' "$f" 2>/dev/null | head -n 1
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}
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hdmi_available() {
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# No longer offered (it needed the pinned kernel): only shown while
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# anything of it is left, so a normal run removes it.
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detect_valve_fremont && hdmi_status
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}
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hdmi_available() { detect_valve_fremont && hdmi_status; }
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hdmi_status() {
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# On while anything of it is left: saved displays (connected or not), the
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# hotplug script, an EDID file, or the kernel parameter of versions
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# before 2.1.0.
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[[ -n "$(hdmi_saved)" || -f "$HDMI_UNIT" || -n "$(hdmi_cmdline_param)" ]] ||
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# On while anything of it is left: saved displays, the hotplug script,
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# an EDID file, or the kernel parameter of versions before 2.1.0.
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[[ -s "$HDMI_MAP" || -f "$HDMI_UNIT" || -n "$(hdmi_cmdline_param)" ]] ||
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compgen -G "$HDMI_FW_DIR/steamify-*.bin" >/dev/null
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}
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hdmi_saved() { [[ -f "$HDMI_MAP" ]] && grep -v '^#' "$HDMI_MAP"; }
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hdmi_active_ids() {
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# IDs of the connected displays whose saved EDID is loaded.
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local f
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for f in "$HDMI_RUN"/*; do [[ -f "$f" ]] && grep -vx reset "$f"; done
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return 0
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}
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hdmi_edid_tool() {
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# hdmi_edid_tool <command> ...: EDID parsing and building (python, as
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# it's byte work). Commands:
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# blocks <edid> number of blocks the display says it has
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# id <edid> vendor/product/serial, to recognise it
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# plan <edid> <w> <h> <cur_hz> "<limit_hz> <best> <step>..." for w x h
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# build <in> <out> <w> <h> <hz>... full EDID plus a DisplayID block
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# with those rates at the shortest blanking
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python3 - "$HDMI_TMDS_MAX_KHZ" "$@" <<'PY'
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import sys
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src_khz = int(sys.argv[1]); cmd = sys.argv[2]; args = sys.argv[3:]
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def load(p): return bytearray(open(p, 'rb').read())
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def le(b): return int.from_bytes(b, 'little')
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def cta_blocks(e):
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for i in range(128, len(e), 128):
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if e[i] == 0x02: yield i
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def data_blocks(e, i):
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# CTA data block collection: (tag, extended tag, offset, length)
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end, p = e[i + 2], i + 4
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while p < i + end and p < i + 127:
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tag, n = e[p] >> 5, e[p] & 0x1f
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yield tag, (e[p + 1] if tag == 7 and n else None), p, n
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p += n + 1
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def eeodb(e):
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for i in cta_blocks(e):
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for tag, ext, p, n in data_blocks(e, i):
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if tag == 7 and ext == 0x78: return p + 2
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return None
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def nblocks(e):
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p = eeodb(e)
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return 1 + max(e[126], e[p] if p and p < len(e) else 0)
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def timings(e):
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# (hz, clk_khz, ha, hb, hf, hs, hpos, va, vb, vf, vs, vpos)
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out = []
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def dtd(b):
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clk = le(b[0:2]) * 10
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if not clk: return
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ha = b[2] | (b[4] >> 4) << 8; hb = b[3] | (b[4] & 15) << 8
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va = b[5] | (b[7] >> 4) << 8; vb = b[6] | (b[7] & 15) << 8
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hf = b[8] | (b[11] >> 6 & 3) << 8; hs = b[9] | (b[11] >> 4 & 3) << 8
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vf = (b[10] >> 4) | (b[11] >> 2 & 3) << 4; vs = (b[10] & 15) | (b[11] & 3) << 4
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if b[17] & 0x80: return # interlaced
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out.append((clk * 1000 / ((ha + hb) * (va + vb)), clk, ha, hb, hf, hs, b[17] >> 1 & 1,
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va, vb, vf, vs, b[17] >> 2 & 1))
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for o in range(54, 126, 18): dtd(e[o:o + 18])
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for i in cta_blocks(e):
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d = e[i + 2]
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if d >= 4:
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for o in range(i + d, i + 127 - 17, 18): dtd(e[o:o + 18])
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for i in range(128, len(e), 128):
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if e[i] != 0x70: continue
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p, end = i + 5, i + 5 + e[i + 2]
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while p + 3 <= end:
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tag, n = e[p], e[p + 2]
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if tag == 0 and n == 0: break
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if tag == 0x03:
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for o in range(p + 3, p + 3 + n - 19, 20):
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b = e[o:o + 20]
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clk = (le(b[0:3]) + 1) * 10
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hf, vf = le(b[8:10]), le(b[16:18])
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ha, hb, va, vb = le(b[4:6]) + 1, le(b[6:8]) + 1, le(b[12:14]) + 1, le(b[14:16]) + 1
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out.append((clk * 1000 / ((ha + hb) * (va + vb)), clk, ha, hb, (hf & 0x7fff) + 1,
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le(b[10:12]) + 1, hf >> 15, va, vb, (vf & 0x7fff) + 1, le(b[18:20]) + 1, vf >> 15))
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p += 3 + n
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return out
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def tmds_khz(e):
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# The display's own TMDS limit: HDMI Forum VSDB, else the HDMI 1.4 VSDB.
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hf = h14 = 0
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for i in cta_blocks(e):
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for tag, ext, p, n in data_blocks(e, i):
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if tag != 3 or n < 3: continue
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oui = e[p + 3] << 16 | e[p + 2] << 8 | e[p + 1]
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if oui == 0xC45DD8 and n >= 5: hf = e[p + 5] * 5000
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if oui == 0x000C03 and n >= 7: h14 = e[p + 7] * 5000
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lim = hf or h14 or 165000
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return min(lim, src_khz)
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def max_vrefresh(e):
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# Range limits descriptor, the HDMI Forum / AMD VRR maximum.
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best = 0
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for o in range(54, 126, 18):
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b = e[o:o + 18]
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if b[0:3] == b'\0\0\0' and b[3] == 0xfd:
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best = max(best, b[6] + (255 if b[4] & 2 else 0))
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for i in cta_blocks(e):
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for tag, ext, p, n in data_blocks(e, i):
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if tag != 3 or n < 3: continue
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oui = e[p + 3] << 16 | e[p + 2] << 8 | e[p + 1]
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if oui == 0xC45DD8 and n >= 10: best = max(best, (e[p + 9] & 0xc0) << 2 | e[p + 10])
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if oui == 0x00001A and n >= 7: best = max(best, e[p + 7])
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return best
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def shortest(e, w, h):
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ts = [t for t in timings(e) if t[2] == w and t[7] == h]
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return min(ts, key=lambda t: (t[2] + t[3]) * (t[7] + t[8])) if ts else None
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if cmd == 'blocks':
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print(nblocks(load(args[0])))
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elif cmd == 'id':
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print(load(args[0])[8:18].hex())
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elif cmd == 'name':
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e = load(args[0])
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for o in range(54, 126, 18):
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if e[o:o + 3] == b'\0\0\0' and e[o + 3] == 0xfc:
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print(e[o + 5:o + 18].split(b'\n')[0].decode('ascii', 'replace').strip())
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elif cmd == 'plan':
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e = load(args[0]); w, h, cur = int(args[1]), int(args[2]), float(args[3])
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lim, t = tmds_khz(e), shortest(e, w, h)
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if not t: sys.exit(1)
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listed = [x[0] for x in timings(e) if x[2] == w and x[7] == h and x[1] <= lim]
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best = max(listed) if listed else cur
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top = int(lim * 1000 // ((t[2] + t[3]) * (t[7] + t[8])))
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vmax = max_vrefresh(e) or int(max(x[0] for x in timings(e) if x[2] == w and x[7] == h))
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top = min(top, vmax)
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# Not right at the limit: the top rounded down to ten, and the hundred
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# below it as a safe option. Rates the display already lists are left
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# out (its own timing is the safer one), and so is anything not faster
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# than what already works.
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steps = sorted({top // 10 * 10, top // 100 * 100})
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steps = [s for s in steps if s > best + 1 and not any(abs(s - x) < 1 for x in listed)]
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print(lim // 1000, round(best, 2), *steps)
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elif cmd == 'options':
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# JSON for the app: the display's name, the HDMI limit and the rates to
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# offer at w x h: its own modes the kernel skips ("monitor"), calculated
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# tens up to the limit ("calculated", ticked) and the exact limit when
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# that's no ten ("limit", not ticked).
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import json
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e, k = load(args[0]), load(args[1]); w, h, cur = int(args[2]), int(args[3]), float(args[4])
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lim, t = tmds_khz(e), shortest(e, w, h)
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name = ''
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for o in range(54, 126, 18):
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if e[o:o + 3] == b'\0\0\0' and e[o + 3] == 0xfc:
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name = e[o + 5:o + 18].split(b'\n')[0].decode('ascii', 'replace').strip()
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rates = []
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if t:
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fits = [x for x in timings(e) if x[2] == w and x[7] == h and x[1] <= lim]
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known = [x[0] for x in timings(k) if x[2] == w and x[7] == h]
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listed = [x[0] for x in fits]
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best = max(listed + [cur])
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for x in sorted(fits):
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if x[0] > cur + 1 and not any(abs(x[0] - y) < 0.5 for y in known):
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rates.append({'hz': round(x[0], 2), 'mhz': round(x[1] / 1000, 1), 'kind': 'monitor', 'pick': True})
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size = (t[2] + t[3]) * (t[7] + t[8])
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vmax = max_vrefresh(e) or int(max(listed + [cur]))
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top = min(int(lim * 1000 // size), vmax)
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tens = [r for r in range(10, top + 1, 10) if r > best + 1 and not any(abs(r - y) < 1 for y in listed)][-3:]
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for r in tens:
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rates.append({'hz': r, 'mhz': round(size * r / 1e6, 1), 'kind': 'calculated', 'pick': True})
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if top % 10 and top > best + 1:
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rates.append({'hz': top, 'mhz': round(size * top / 1e6, 1), 'kind': 'limit', 'pick': False})
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print(json.dumps({'name': name, 'limit': lim // 1000, 'rates': rates}))
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elif cmd == 'build':
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e = load(args[0]); w, h = int(args[2]), int(args[3]); rates = [int(r) for r in args[4:]]
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t = shortest(e, w, h)
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n = nblocks(e)
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e = e[:n * 128]
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out = b''
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for hz in rates:
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_, _, ha, hb, hf, hs, hp, va, vb, vf, vs, vp = t
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clk = round((ha + hb) * (va + vb) * hz / 1e4)
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x = (clk - 1).to_bytes(3, 'little') + bytes([0x08])
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for v, pol in ((ha, 0), (hb, 0), (hf, hp), (hs, 0), (va, 0), (vb, 0), (vf, vp), (vs, 0)):
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x += ((v - 1) | pol << 15).to_bytes(2, 'little')
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out += x
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if out:
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blk = bytearray(128)
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blk[0:5] = bytes([0x70, 0x12, 121, 0x00, 0x00])
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blk[5:8] = bytes([0x03, 0x00, len(out)])
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blk[8:8 + len(out)] = out
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blk[126] = (-sum(blk[1:126])) % 256
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blk[127] = (-sum(blk[:127])) % 256
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e += blk
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count = len(e) // 128 - 1
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e[126] = count
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e[127] = (-sum(e[:127])) % 256
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p = eeodb(e)
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if p:
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e[p] = count
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i = p - p % 128
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e[i + 127] = (-sum(e[i:i + 127])) % 256
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open(args[1], 'wb').write(e)
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PY
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}
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hdmi_read_edid() {
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# hdmi_read_edid <card-connector> <out>: the display's complete EDID,
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# read over DDC block by block (the kernel's copy may miss blocks).
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local conn="$1" out="$2" bus n i tmp
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bus="$(basename "$(readlink -f "/sys/class/drm/$conn/ddc")")"; bus="${bus#i2c-}"
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tmp="$(mktemp)"
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cat "/sys/class/drm/$conn/edid" > "$out"
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if [[ -n "$bus" ]] && sudo modprobe i2c-dev 2>/dev/null; then
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n="$(hdmi_edid_tool blocks "$out")"
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: > "$tmp"
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for (( i = 0; i < n; i++ )); do
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# Segment pointer (0x30) selects each pair of blocks.
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sudo i2ctransfer -y "$bus" w1@0x30 $(( i / 2 )) w1@0x50 $(( (i % 2) * 128 )) r128@0x50 2>/dev/null |
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xxd -r -p >> "$tmp" 2>/dev/null ||
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{ [[ $i -lt 2 ]] && { sudo i2ctransfer -y "$bus" w1@0x50 $(( i * 128 )) r128@0x50 | xxd -r -p >> "$tmp"; }; } || break
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done
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# Keep the DDC copy only when it's whole and the same display as the
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# kernel's (not the whole block: a live override changes it).
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if [[ "$(stat -c %s "$tmp")" == $(( n * 128 )) &&
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"$(hdmi_edid_tool id "$tmp")" == "$(hdmi_edid_tool id "$out")" ]]; then
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cat "$tmp" > "$out"
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fi
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fi
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rm -f "$tmp"
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}
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hdmi_debugfs() {
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# debugfs directory of a connector (one of several paths to the same
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# GPU). Only root can list debugfs, so the glob runs under sudo.
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hdmi_reset_live() {
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# Puts a connected display back on its own EDID right away. debugfs is
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# root-only, so the glob runs under sudo; the kernel takes exactly
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# "reset", without a newline.
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local d
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d="$(sudo sh -c 'for d in /sys/kernel/debug/dri/*/"$1"; do [ -e "$d/edid_override" ] && { echo "$d"; break; }; done' _ "${1#card*-}")"
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[[ -n "$d" ]] && echo "$d"
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}
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hdmi_override_live() {
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# hdmi_override_live <card-connector> <edid|reset>: swap the EDID the
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# kernel uses right now, without a restart.
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local d; d="$(hdmi_debugfs "$1")" || return 1
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# The kernel takes exactly "reset", without a newline.
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if [[ "$2" == reset ]]; then printf reset | sudo tee "$d/edid_override" >/dev/null
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else sudo tee "$d/edid_override" < "$2" >/dev/null; fi || return 1
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echo 1 | sudo tee "$d/trigger_hotplug" >/dev/null
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sleep 3
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}
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hdmi_kscreen() {
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# hdmi_kscreen current|mode <output> [<w> <h> <hz>]: KDE's view of the
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# output: "w h hz" of the current mode, or set the mode closest to hz.
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kscreen-doctor -j 2>/dev/null | python3 -c '
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import json, sys
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what, name = sys.argv[1], sys.argv[2]
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for o in json.load(sys.stdin)["outputs"]:
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if o["name"] != name: continue
|
||||
modes = {m["id"]: m for m in o["modes"]}
|
||||
if what == "current":
|
||||
m = modes[o["currentModeId"]]
|
||||
print(m["size"]["width"], m["size"]["height"], round(m["refreshRate"], 2))
|
||||
else:
|
||||
w, h, hz = int(sys.argv[3]), int(sys.argv[4]), float(sys.argv[5])
|
||||
ms = [m for m in o["modes"] if m["size"]["width"] == w and m["size"]["height"] == h]
|
||||
if ms: print(min(ms, key=lambda m: abs(m["refreshRate"] - hz))["id"])
|
||||
' "$@"
|
||||
}
|
||||
|
||||
hdmi_set_mode() {
|
||||
# hdmi_set_mode <output> <w> <h> <hz>: returns 1 if KDE has no such mode.
|
||||
local id rate
|
||||
id="$(hdmi_kscreen mode "$@")" || return 1
|
||||
[[ -n "$id" ]] || return 1
|
||||
kscreen-doctor "output.$1.mode.$id" >/dev/null 2>&1 || return 1
|
||||
sleep 2
|
||||
rate="$(hdmi_kscreen current "$1" | cut -d' ' -f3)"
|
||||
# Whole hertz: the rate asked for can be e.g. 59.97.
|
||||
[[ "${rate%.*}" -ge $(( ${4%.*} - 1 )) ]]
|
||||
}
|
||||
|
||||
hdmi_confirm() {
|
||||
# No answer (black screen, nobody there) is a no.
|
||||
local reply
|
||||
read -rt "$HDMI_CONFIRM_SECONDS" -p "$(echo -e "${c_bold}$1${c_reset} [y/N, ${HDMI_CONFIRM_SECONDS}s] ")" reply || { echo; return 1; }
|
||||
[[ "$reply" =~ ^[Yy]$ ]]
|
||||
[[ -n "$d" ]] || return 1
|
||||
printf reset | sudo tee "$d/edid_override" >/dev/null &&
|
||||
echo 1 | sudo tee "$d/trigger_hotplug" >/dev/null
|
||||
}
|
||||
|
||||
hdmi_remove_boot_param() {
|
||||
# Removes the drm.edid_firmware= older versions put on the kernel command
|
||||
# line (it applied to whatever display was on that port), then rebuilds
|
||||
# the initramfs and boot entries.
|
||||
# line, then rebuilds the initramfs and boot entries.
|
||||
local f
|
||||
[[ -n "$(hdmi_cmdline_param)" ]] || { sudo rm -f "$HDMI_INITRAMFS_CONF"; return 0; }
|
||||
f="$(hdmi_boot_file)"
|
||||
@@ -370,326 +77,26 @@ hdmi_remove_boot_param() {
|
||||
esac
|
||||
}
|
||||
|
||||
hdmi_write_map() {
|
||||
# hdmi_write_map <lines>: the saved displays list.
|
||||
sudo mkdir -p "$(dirname "$HDMI_MAP")"
|
||||
{ printf '# Written by steamify: HDMI refresh boost, one display per line:\n'
|
||||
printf '# <id>\t<name>\t<w>x<h>\t<rates>\n'
|
||||
[[ -n "$1" ]] && printf '%s\n' "$1"; } | sudo tee "$HDMI_MAP" >/dev/null
|
||||
}
|
||||
|
||||
hdmi_save() {
|
||||
# hdmi_save <edid> <w>x<h> <rates>: keep an EDID for the display it was
|
||||
# built from (block 0 is the display's own, so is its ID), replacing
|
||||
# what was saved for that display before.
|
||||
local id name
|
||||
id="$(hdmi_edid_tool id "$1")" && [[ -n "$id" ]] || return 1
|
||||
name="$(hdmi_edid_tool name "$1")"
|
||||
sudo install -Dm644 "$1" "$HDMI_FW_DIR/steamify-$id.bin" || return 1
|
||||
hdmi_write_map "$(hdmi_saved | awk -F'\t' -v i="$id" '$1 != i'
|
||||
printf '%s\t%s\t%s\t%s' "$id" "${name:-HDMI display}" "$2" "$3")"
|
||||
}
|
||||
|
||||
hdmi_forget() {
|
||||
# hdmi_forget <id>|all: remove saved displays; the hotplug script puts
|
||||
# a connected one back on its own EDID, and goes when none are left.
|
||||
local rest=""
|
||||
if [[ "$1" == all ]]; then
|
||||
sudo rm -f "$HDMI_FW_DIR"/steamify-*.bin
|
||||
else
|
||||
rest="$(hdmi_saved | awk -F'\t' -v i="$1" '$1 != i')"
|
||||
sudo rm -f "$HDMI_FW_DIR/steamify-$1.bin"
|
||||
fi
|
||||
if [[ -z "$rest" ]]; then hdmi_remove_hotplug; return; fi
|
||||
hdmi_write_map "$rest"
|
||||
sudo systemctl restart "$HDMI_UNIT_NAME"
|
||||
}
|
||||
|
||||
hdmi_migrate() {
|
||||
# Setups before 2.1.0: steamify-<output>.bin on the kernel command line,
|
||||
# the display's ID and mode in the state file. Saved per display now.
|
||||
local f out
|
||||
local -a smode
|
||||
for f in "$HDMI_FW_DIR"/steamify-*-*.bin; do
|
||||
[[ -e "$f" ]] || continue
|
||||
out="${f##*/steamify-}"; out="${out%.bin}"
|
||||
read -ra smode <<< "$(state_get hdmi "$out-mode")"
|
||||
[[ ${#smode[@]} -ge 2 ]] && hdmi_save "$f" "${smode[0]}x${smode[1]}" "${smode[*]:2}"
|
||||
sudo rm -f "$f"
|
||||
done
|
||||
state_clear hdmi
|
||||
hdmi_remove_boot_param
|
||||
}
|
||||
|
||||
hdmi_install_hotplug() {
|
||||
# A saved EDID is only loaded while its display is connected: a udev
|
||||
# rule runs the script at every hotplug (and a unit at boot, before the
|
||||
# login manager). The script reads the display's ID over DDC, which
|
||||
# shows the real display even while an override is loaded, and loads
|
||||
# that display's file or resets to its own EDID. Unplugging resets too,
|
||||
# so the next display never starts on the wrong one.
|
||||
sudo tee "$HDMI_HOTPLUG" > /dev/null << 'EOF'
|
||||
#!/bin/bash
|
||||
# Steamify CachyOS, HDMI refresh boost: load a display's saved EDID only
|
||||
# while it is connected. Runs as root (debugfs).
|
||||
FW=/usr/lib/firmware/edid RUN=/run/steamify-edid
|
||||
modprobe i2c-dev 2>/dev/null
|
||||
mkdir -p "$RUN"
|
||||
# Hotplug events come in bursts, and the link needs a moment before DDC works.
|
||||
sleep 1
|
||||
for c in /sys/class/drm/card*-HDMI-A-*; do
|
||||
[ -e "$c" ] || continue
|
||||
out="${c##*/}"; out="${out#card*-}"
|
||||
new=reset id=""
|
||||
if [ "$(cat "$c/status")" = connected ]; then
|
||||
bus="$(basename "$(readlink -f "$c/ddc")")"
|
||||
for i in 1 2 3 4 5; do
|
||||
# Bytes 8-17 of block 0: manufacturer, product, serial, date.
|
||||
id="$(i2ctransfer -y "${bus#i2c-}" w1@0x50 0 r18@0x50 2>/dev/null | tr -d ' ' | sed 's/0x//g')"
|
||||
[ ${#id} -eq 36 ] && break
|
||||
sleep 1
|
||||
done
|
||||
[ ${#id} -eq 36 ] && [ -f "$FW/steamify-${id:16}.bin" ] && new="${id:16}"
|
||||
fi
|
||||
[ "$(cat "$RUN/$out" 2>/dev/null || echo reset)" = "$new" ] && continue
|
||||
for d in /sys/kernel/debug/dri/*/"$out"; do [ -e "$d/edid_override" ] && break; done
|
||||
[ -e "$d/edid_override" ] || continue
|
||||
if [ "$new" = reset ]; then printf reset > "$d/edid_override"
|
||||
else cat "$FW/steamify-$new.bin" > "$d/edid_override"; fi
|
||||
# Before the hotplug below, whose own event runs this again.
|
||||
echo "$new" > "$RUN/$out"
|
||||
echo 1 > "$d/trigger_hotplug"
|
||||
done
|
||||
exit 0
|
||||
EOF
|
||||
sudo chmod 755 "$HDMI_HOTPLUG"
|
||||
# StartLimitIntervalSec=0: a burst of hotplugs must not get it rate-limited.
|
||||
sudo tee "$HDMI_UNIT" > /dev/null << EOF
|
||||
[Unit]
|
||||
Description=Steamify CachyOS: HDMI refresh boost EDID for the connected display
|
||||
StartLimitIntervalSec=0
|
||||
Wants=sys-kernel-debug.mount
|
||||
After=sys-kernel-debug.mount
|
||||
Before=display-manager.service sddm.service plasmalogin.service
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=$HDMI_HOTPLUG
|
||||
|
||||
[Install]
|
||||
WantedBy=graphical.target
|
||||
EOF
|
||||
# restart, not start: a hotplug during a run must still be looked at.
|
||||
printf '%s\n' '# Written by steamify: HDMI refresh boost, check the display at every hotplug.' \
|
||||
"ACTION==\"change\", SUBSYSTEM==\"drm\", ENV{HOTPLUG}==\"1\", RUN+=\"/usr/bin/systemctl --no-block restart $HDMI_UNIT_NAME\"" |
|
||||
sudo tee "$HDMI_UDEV_RULE" >/dev/null || return 1
|
||||
sudo systemctl daemon-reload
|
||||
sudo udevadm control --reload
|
||||
sudo systemctl enable "$HDMI_UNIT_NAME" >/dev/null 2>&1 || { err "Enabling $HDMI_UNIT_NAME failed."; return 1; }
|
||||
sudo systemctl restart "$HDMI_UNIT_NAME"
|
||||
}
|
||||
|
||||
hdmi_remove_hotplug() {
|
||||
hdmi_forget_all() {
|
||||
# Every saved display and the hotplug script that loaded their EDIDs.
|
||||
local conn
|
||||
sudo rm -f "$HDMI_FW_DIR"/steamify-*.bin
|
||||
sudo systemctl disable "$HDMI_UNIT_NAME" >/dev/null 2>&1
|
||||
sudo rm -f "$HDMI_UDEV_RULE" "$HDMI_UNIT" "$HDMI_HOTPLUG" "$HDMI_MAP"
|
||||
sudo rm -rf "$HDMI_RUN"
|
||||
sudo systemctl daemon-reload
|
||||
sudo udevadm control --reload
|
||||
for conn in $(hdmi_connectors); do hdmi_override_live "$conn" reset 2>/dev/null; done
|
||||
for conn in $(hdmi_connectors); do hdmi_reset_live "$conn" 2>/dev/null; done
|
||||
return 0
|
||||
}
|
||||
|
||||
hdmi_tune() {
|
||||
# hdmi_tune <card-connector> <tmpdir>: find and confirm the highest rate
|
||||
# at the desktop resolution. Sets HDMI_RESULT to "<w> <h> <hz>..." (the
|
||||
# confirmed new rates) or leaves it empty.
|
||||
local conn="$1" tmp="$2" out="${1#card*-}" cur w h hz plan lim best steps_str
|
||||
local -a steps ok_rates=()
|
||||
HDMI_RESULT=""
|
||||
# From the display's own EDID: a live one left by an earlier test would
|
||||
# make its rates look like what the display already does.
|
||||
hdmi_override_live "$conn" reset 2>/dev/null
|
||||
cur="$(hdmi_kscreen current "$out")"
|
||||
[[ -n "$cur" ]] || { warn "$out: KDE doesn't show this output; skipped."; return 0; }
|
||||
read -r w h hz <<< "$cur"
|
||||
info "$out: desktop resolution ${w}x${h} at ${hz} Hz. Reading the display's EDID..."
|
||||
hdmi_read_edid "$conn" "$tmp/$out.orig" || return 1
|
||||
if ! plan="$(hdmi_edid_tool plan "$tmp/$out.orig" "$w" "$h" "$hz")"; then
|
||||
warn "$out: the display lists no timing for ${w}x${h}; nothing to calculate."
|
||||
return 0
|
||||
fi
|
||||
read -r lim best steps_str <<< "$plan"
|
||||
read -ra steps <<< "${steps_str:-}"
|
||||
info "$out: HDMI limit ${lim} MHz, fastest mode that fits now: ${best} Hz."
|
||||
if [[ ${#steps[@]} -eq 0 ]]; then
|
||||
ok "$out: already at the highest rate that fits HDMI here; nothing to change."
|
||||
return 0
|
||||
fi
|
||||
info "$out: steps to try: ${steps[*]} Hz. After each one you're asked whether the"
|
||||
info "picture is OK; no answer within ${HDMI_CONFIRM_SECONDS} s (e.g. a black screen) switches back."
|
||||
ask_yn "Start the test?" y || return 0
|
||||
|
||||
hdmi_edid_tool build "$tmp/$out.orig" "$tmp/$out.test" "$w" "$h" "${steps[@]}" &&
|
||||
hdmi_override_live "$conn" "$tmp/$out.test" ||
|
||||
{ err "$out: couldn't load the test EDID (debugfs)."; return 1; }
|
||||
local s
|
||||
for s in "${steps[@]}"; do
|
||||
info "$out: switching to ${w}x${h} at $s Hz..."
|
||||
if hdmi_set_mode "$out" "$w" "$h" "$s" && hdmi_confirm "Is the picture OK at $s Hz?"; then
|
||||
ok "$out: $s Hz works."
|
||||
ok_rates+=("$s")
|
||||
else
|
||||
warn "$out: $s Hz doesn't work; stopping here."
|
||||
break
|
||||
fi
|
||||
done
|
||||
if [[ ${#ok_rates[@]} -eq 0 ]]; then
|
||||
hdmi_override_live "$conn" reset
|
||||
hdmi_set_mode "$out" "$w" "$h" "$hz" >/dev/null
|
||||
info "$out: back to ${hz} Hz; nothing changed."
|
||||
return 0
|
||||
fi
|
||||
# Without the steps that failed, so KDE and gamescope never pick them.
|
||||
hdmi_edid_tool build "$tmp/$out.orig" "$tmp/$out.final" "$w" "$h" "${ok_rates[@]}" &&
|
||||
hdmi_override_live "$conn" "$tmp/$out.final"
|
||||
hdmi_set_mode "$out" "$w" "$h" "${ok_rates[-1]}" >/dev/null
|
||||
HDMI_RESULT="$w $h ${ok_rates[*]}"
|
||||
}
|
||||
|
||||
# --- For the app: options, live tries, and installing what was confirmed ---
|
||||
# The EDIDs read by hdmi_options, reused by the tries and the install.
|
||||
HDMI_CACHE="${XDG_RUNTIME_DIR:-/tmp}/steamify-hdmi"
|
||||
|
||||
hdmi_options() {
|
||||
# JSON array: per connected HDMI output its name, mode and rate options.
|
||||
local conn out cur w h hz opts sep=""
|
||||
mkdir -p "$HDMI_CACHE"
|
||||
printf '['
|
||||
for conn in $(hdmi_connectors); do
|
||||
out="${conn#card*-}"
|
||||
# A live EDID left by an earlier try would look like the display's own.
|
||||
hdmi_status || hdmi_override_live "$conn" reset 2>/dev/null
|
||||
cur="$(hdmi_kscreen current "$out")"
|
||||
[[ -n "$cur" ]] || continue
|
||||
read -r w h hz <<< "$cur"
|
||||
hdmi_read_edid "$conn" "$HDMI_CACHE/$out.orig" || continue
|
||||
opts="$(hdmi_edid_tool options "$HDMI_CACHE/$out.orig" "/sys/class/drm/$conn/edid" "$w" "$h" "$hz")" || continue
|
||||
# Every rate on offer loaded now, while the list is on screen: a try
|
||||
# is then only a mode switch (the current mode stays in the EDID).
|
||||
hdmi_status || hdmi_preload "$conn" "$w" "$h" "$opts"
|
||||
printf '%s{"connector":"%s","output":"%s","width":%s,"height":%s,"hz":%s,"info":%s}' "$sep" "$conn" "$out" "$w" "$h" "$hz" "$opts"
|
||||
sep=","
|
||||
done
|
||||
printf ']'
|
||||
}
|
||||
|
||||
hdmi_preload() {
|
||||
# hdmi_preload <card-connector> <w> <h> <options json>: load the EDID
|
||||
# with the calculated rates, as hdmi_try would on the first try.
|
||||
local conn="$1" out="${1#card*-}"
|
||||
local -a rates
|
||||
read -ra rates <<< "$(python3 -c 'import json, sys
|
||||
print(" ".join(str(r["hz"]) for r in json.loads(sys.argv[1])["rates"] if r["kind"] != "monitor"))' "$4")"
|
||||
hdmi_edid_tool build "$HDMI_CACHE/$out.orig" "$HDMI_CACHE/$out.test" "$2" "$3" "${rates[@]}" &&
|
||||
hdmi_override_live "$conn" "$HDMI_CACHE/$out.test" &&
|
||||
cp "$HDMI_CACHE/$out.test" "$HDMI_CACHE/$out.loaded"
|
||||
}
|
||||
|
||||
hdmi_try() {
|
||||
# hdmi_try <card-connector> <w> <h> <hz> [<rate>...]: switch to hz, with
|
||||
# an EDID holding the given calculated rates (loaded once per set).
|
||||
local conn="$1" w="$2" h="$3" hz="$4" out="${1#card*-}"
|
||||
shift 4
|
||||
[[ -f "$HDMI_CACHE/$out.orig" ]] || hdmi_read_edid "$conn" "$HDMI_CACHE/$out.orig"
|
||||
hdmi_edid_tool build "$HDMI_CACHE/$out.orig" "$HDMI_CACHE/$out.test" "$w" "$h" "$@" || return 1
|
||||
if ! cmp -s "$HDMI_CACHE/$out.test" "$HDMI_CACHE/$out.loaded" 2>/dev/null; then
|
||||
hdmi_override_live "$conn" "$HDMI_CACHE/$out.test" || return 1
|
||||
cp "$HDMI_CACHE/$out.test" "$HDMI_CACHE/$out.loaded"
|
||||
fi
|
||||
hdmi_set_mode "$out" "$w" "$h" "$hz"
|
||||
}
|
||||
|
||||
hdmi_reset() {
|
||||
# hdmi_reset <card-connector> <w> <h> <hz>: the display's own EDID again.
|
||||
hdmi_override_live "$1" reset
|
||||
rm -f "$HDMI_CACHE/${1#card*-}.loaded"
|
||||
hdmi_set_mode "${1#card*-}" "$2" "$3" "$4" >/dev/null
|
||||
}
|
||||
|
||||
hdmi_choose() {
|
||||
# For HDMI_CHOICE ("<output>=<w>x<h>:<rate>,..." from the app, rates it
|
||||
# confirmed): builds the final EDIDs in <tmpdir> like hdmi_tune does.
|
||||
local tmp="$1" item out mode rates w h
|
||||
local -a r
|
||||
for item in "${HDMI_CHOICE[@]}"; do
|
||||
out="${item%%=*}"; mode="${item#*=}"; rates="${mode#*:}"; mode="${mode%%:*}"
|
||||
w="${mode%x*}"; h="${mode#*x}"
|
||||
IFS=',' read -ra r <<< "$rates"
|
||||
HDMI_CHOSEN_CONN="$(basename /sys/class/drm/card*-"$out")"
|
||||
if [[ -f "$HDMI_CACHE/$out.orig" ]]; then cp "$HDMI_CACHE/$out.orig" "$tmp/$out.orig"
|
||||
else hdmi_read_edid "$HDMI_CHOSEN_CONN" "$tmp/$out.orig" || return 1; fi
|
||||
hdmi_edid_tool build "$tmp/$out.orig" "$tmp/$out.final" "$w" "$h" "${r[@]}" &&
|
||||
hdmi_override_live "$HDMI_CHOSEN_CONN" "$tmp/$out.final" || return 1
|
||||
[[ ${#r[@]} -gt 0 ]] && hdmi_set_mode "$out" "$w" "$h" "${r[-1]}" >/dev/null
|
||||
HDMI_RESULTS+=("$out|$w $h ${r[*]}")
|
||||
done
|
||||
}
|
||||
|
||||
hdmi_enable() {
|
||||
local -a HDMI_RESULTS=()
|
||||
if [[ -n "$(hdmi_cmdline_param)" ]]; then
|
||||
info "Moving the EDID override off the kernel command line, so it only applies to its display..."
|
||||
hdmi_migrate && hdmi_install_hotplug || { err "Moving it failed."; return 1; }
|
||||
ok "HDMI refresh boost now only applies to the display it was set up for."
|
||||
return 0
|
||||
fi
|
||||
if hdmi_status; then
|
||||
ok "Already set up for the connected display. Untick and tick it again to re-test."
|
||||
return 0
|
||||
fi
|
||||
if [[ "${BACKEND:-false}" == true && ${#HDMI_CHOICE[@]} -eq 0 ]]; then
|
||||
err "HDMI refresh boost needs you at the screen: pick and test the rates in the app first."
|
||||
return 1
|
||||
fi
|
||||
if [[ "${XDG_CURRENT_DESKTOP:-}" != *KDE* ]] || ! command -v kscreen-doctor >/dev/null; then
|
||||
err "Run this from the Plasma desktop: the test switches the display mode through KDE."
|
||||
return 1
|
||||
fi
|
||||
sudo pacman -S --needed --noconfirm i2c-tools python >/dev/null 2>&1 || { err "Installing i2c-tools failed."; return 1; }
|
||||
|
||||
local tmp conn out res saved=false rc=0
|
||||
local -a smode
|
||||
tmp="$(mktemp -d)"
|
||||
if [[ ${#HDMI_CHOICE[@]} -gt 0 ]]; then
|
||||
# Picked and tested in the app.
|
||||
hdmi_choose "$tmp" || rc=1
|
||||
else
|
||||
for conn in $(hdmi_connectors); do
|
||||
hdmi_tune "$conn" "$tmp" || { rc=1; continue; }
|
||||
[[ -n "$HDMI_RESULT" ]] && HDMI_RESULTS+=("${conn#card*-}|$HDMI_RESULT")
|
||||
done
|
||||
fi
|
||||
for res in "${HDMI_RESULTS[@]}"; do
|
||||
out="${res%%|*}"; read -ra smode <<< "${res#*|}"
|
||||
hdmi_save "$tmp/$out.final" "${smode[0]}x${smode[1]}" "${smode[*]:2}" && saved=true || rc=1
|
||||
done
|
||||
rm -rf "$tmp" "$HDMI_CACHE"
|
||||
[[ "$saved" == true ]] || return $rc
|
||||
if ! hdmi_install_hotplug; then
|
||||
# Nothing half-done left behind; the live EDID lasts until a restart.
|
||||
hdmi_remove_hotplug
|
||||
err "Making it permanent failed; the display is back on its own EDID."
|
||||
return 1
|
||||
fi
|
||||
ok "HDMI refresh boost is saved for this display; other displays keep their own settings."
|
||||
return $rc
|
||||
err "HDMI refresh boost is no longer offered: current kernels run HDMI displays at their full rate."
|
||||
return 1
|
||||
}
|
||||
|
||||
hdmi_disable() {
|
||||
# Everything, for every saved display: newer kernels read the whole EDID
|
||||
# themselves, and an old one loaded at the next hotplug would be wrong.
|
||||
hdmi_forget all
|
||||
hdmi_forget_all
|
||||
hdmi_remove_boot_param || return 1
|
||||
state_clear hdmi
|
||||
ok "HDMI refresh boost removed; displays use their own EDID again."
|
||||
|
||||
Reference in new issue
Block a user