feat: HDMI refresh boost and Update BIOS under Steam Machine support

Both are sub-options of Steam Machine support now, shown only while it is
ticked. Unticking it unticks them; unticking the kernel pin unticks the
HDMI refresh boost, which only works with the pinned kernel.

AGENTS.md

@@ -142,7 +142,7 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
   `steam-set-session plasma.desktop` plus the plasmalogin sync bridge when it
   exists, at every boot. CachyOS's `cachyos-gamescope-autologin` still sets
   gamescope during each desktop session; the unit corrects it at boot.
-- `bios` is an *action* (`ACTIONS` in `lib/menu.sh`), not an on/off
+- `bios` is an *action* (`ACTIONS` in `lib/menu.sh`) and a sub-option of `machine`, not an on/off
   component: never preselected (not even on a first run), never re-applied
   by `a`, not listed in the state overview, and `bios_status` is always off.
   Only selectable when Valve's version differs from the installed one
@@ -171,8 +171,9 @@ gamescope and the Plasma desktop. Primary target: the Valve Steam Machine
   The start script closes its window after a 10-second countdown on success
   and waits for Enter after an error; it uses `pipefail`, or a failed
   download would run an empty script and count as success.
-- HDMI refresh boost (`hdmi`, `lib/hdmi-refresh.sh`): only on Fremont with
+- HDMI refresh boost (`hdmi`, `lib/hdmi-refresh.sh`): a sub-option of
-  the pinned kernel (stays visible while on). It needs someone at the
+  `machine` (like `kpin` and `bios`), only on Fremont with the pinned kernel
+  (stays visible while on); unticking `kpin` unticks it. It needs someone at the
   screen: the graphical app's backend (`BACKEND=true`) must refuse it, and every step needs a "y" within 15 s
   (`WIZARD_HDMI_CONFIRM_SECONDS` for scripted tests). debugfs is root-only
   (glob it under sudo), and `edid_override` takes exactly `reset` with no

CHANGELOG.md

@@ -15,6 +15,10 @@ one per merged pull request.
     (rounded down to ten, plus the hundred below as a safe option), tests
     each step live with a confirmation, and makes the confirmed ones
     permanent through `drm.edid_firmware` (Limine, sdboot-manage or GRUB).
+- **feat: HDMI refresh boost and Update BIOS under Steam Machine support**
+  - Both are sub-options now, shown only while Steam Machine support is
+    ticked. Unticking it unticks them; unticking the kernel pin unticks the
+    HDMI refresh boost.
 
 ## 1.1.4 - 2026-09-25
 

README.md

@@ -50,15 +50,15 @@ What Steamify can do on a Valve Steam Machine:
     [release](https://github.com/theupriser/steamify-cachyos/releases/tag/kernel-7.1.6-1),
     checked against CachyOS's signature
     ([details](TECHNICAL.md#kernel-pin-steam-machine)).
-- **HDMI refresh boost** - only with the pinned kernel, never ticked by
+  - **HDMI refresh boost** - only with the pinned kernel, never ticked by
-  default: gets the highest refresh rate your HDMI display runs at the
+    default: gets the highest refresh rate your HDMI display runs at the
-  desktop resolution (e.g. 110 Hz instead of 60 on a 3440x1440 monitor).
+    desktop resolution (e.g. 110 Hz instead of 60 on a 3440x1440 monitor).
-  Each step is shown and you confirm it; no answer within 15 s switches
+    Each step is shown and you confirm it; no answer within 15 s switches
-  back. For more (e.g. 175 Hz), use DisplayPort
+    back. For more (e.g. 175 Hz), use DisplayPort
-  ([details](TECHNICAL.md#hdmi-refresh-boost-steam-machine)).
+    ([details](TECHNICAL.md#hdmi-refresh-boost-steam-machine)).
-- **Update BIOS** - installs Valve's newest Steam Machine BIOS. Never ticked
+  - **Update BIOS** - installs Valve's newest Steam Machine BIOS. Never ticked
-  by default, at your own risk, and only after two warnings
+    by default, at your own risk, and only after two warnings
-  ([details](TECHNICAL.md#bios-updates-steam-machine)).
+    ([details](TECHNICAL.md#bios-updates-steam-machine)).
 
 ## Requirements
 

lib/menu.sh

@@ -10,7 +10,7 @@ COMPONENTS=(gaming boot theme glyphs single launcher cec machine kpin hdmi bios)
 # re-applied, not listed as on or off.
 ACTIONS=(bios)
 # Sub-options, shown indented under their parent and only while it's ticked.
-declare -A PARENT=([boot]=gaming [kpin]=machine)
+declare -A PARENT=([boot]=gaming [kpin]=machine [hdmi]=machine [bios]=machine)
 # Never preselected on a first run: booting into the desktop is a choice,
 # gamescope is the default; HDMI-CEC is opt-in (it can wake the machine or
 # upset other devices on the TV, even on SteamOS), except on a Steam Machine,
@@ -96,6 +96,12 @@ toggle_component() {
     # The kernel pin is opt-out: ticked along with Steam Machine support.
     if [[ "$c" == machine ]]; then WANTED[kpin]=${WANTED[machine]}; fi
     if [[ "$c" == kpin && "${WANTED[kpin]}" == 1 ]]; then WANTED[machine]=1; fi
+    # HDMI refresh boost and the BIOS update sit under Steam Machine support;
+    # the boost also needs the pinned kernel (newer kernels don't need it).
+    if [[ "$c" == machine && "${WANTED[machine]}" == 0 ]]; then WANTED[hdmi]=0; WANTED[bios]=0; fi
+    if [[ "$c" == kpin && "${WANTED[kpin]}" == 0 ]]; then WANTED[hdmi]=0; fi
+    if [[ "$c" == hdmi && "${WANTED[hdmi]}" == 1 ]]; then WANTED[machine]=1; WANTED[kpin]=1; fi
+    if [[ "$c" == bios && "${WANTED[bios]}" == 1 ]]; then WANTED[machine]=1; fi
 }
 
 show_menu() {
@@ -118,12 +124,13 @@ show_menu() {
             [[ "${CURRENT[gaming]}" == 1 ]] || now="-"
             want="gaming"; [[ "${WANTED[boot]}" == 1 ]] && want="desk"
             printf "  %-3s %-6s %-6s   └ %s\n" "$i" "$now" "$want" "$(boot_choice "${WANTED[boot]}")"
+        elif ! component_selectable "$c"; then
+            local tree=""; [[ -n "${PARENT[$c]:-}" ]] && tree="  └ "
+            printf "  %b%-3s %-6s %-6s %s%s (not available)%b\n" "$c_dim" "$i" "$now" "$want" "$tree" "${LABEL[$c]}" "$c_reset"
         elif [[ -n "${PARENT[$c]:-}" ]]; then
             printf "  %-3s %b %-6s   └ %s\n" "$i" "$now" "$want" "${LABEL[$c]}"
-        elif component_selectable "$c"; then
-            printf "  %-3s %b %-6s %s\n" "$i" "$now" "$want" "${LABEL[$c]}"
         else
-            printf "  %b%-3s %-6s %-6s %s (not available)%b\n" "$c_dim" "$i" "$now" "$want" "${LABEL[$c]}" "$c_reset"
+            printf "  %-3s %b %-6s %s\n" "$i" "$now" "$want" "${LABEL[$c]}"
         fi
     done
     echo
@@ -171,8 +178,9 @@ draw_menu_tui() {
         fi
         if ! component_selectable "$c"; then
             # Greyed out: nothing to do (e.g. BIOS already up to date).
-            local mark="   "; (( i == cursor )) && mark=" ${c_cyan}>${c_reset} "
+            local mark="   " tree=""; (( i == cursor )) && mark=" ${c_cyan}>${c_reset} "
-            echo -e "${mark}${c_dim}[ ] ${LABEL[$c]}  (not available)${c_reset}"
+            [[ -n "${PARENT[$c]:-}" ]] && tree="    └ "
+            echo -e "${mark}${c_dim}${tree}[ ] ${LABEL[$c]}  (not available)${c_reset}"
         elif (( i == cursor )); then
             # The green x's reset would end the bold too: re-enable it after.
             echo -e " ${c_cyan}>${c_reset} ${c_bold}${line//"$c_reset"/"$c_reset$c_bold"}${c_reset}${state}"