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The pinned 7.1.6 kernel doesn't read the extra EDID block (HDMI Forum EEODB) where monitors list their fast modes, and does no HDMI 2.1, so HDMI displays often stay at 60 Hz. The new menu item reads the display's EDID over DDC, calculates the highest rate that fits HDMI 2.0 at the desktop resolution (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).