• Dell Inspiron 24 5459 AIO

• TODO: CVT-RB2 standard 78.5 Hz
• Only 1920×1080 and possibly 1366×768 (default in CRU) work correctly

sudo mkdir -p '/usr/lib/firmware/edid'

sudo cp x '/usr/lib/firmware/edid'

ls '/usr/lib/firmware/edid'

'/usr/lib/firmware/edid/785-1080-eDP.bin'

• Dracut

sudo -e '/etc/dracut.conf.d/99-hailrake.conf'

install_items+='/usr/lib/firmware/edid/785-1080-eDP.bin'

sudo dracut --force --regenerate-all

• Kernel parameter

drm.edid_firmware='eDP-1:edid/785-1080-eDP.bin'

• Debian 13 (Xfce)
• 785-cta871-eDP.bin

sudo mkdir -p '/usr/lib/firmware/edid' && sudo cp ~/'Downloads/785-cta871-eDP.bin' '/usr/lib/firmware/edid' && ls '/usr/lib/firmware/edid/785-cta871-eDP.bin'

• Source

sudo -e '/etc/initramfs-tools/hooks/edid' && sudo chmod +x '/etc/initramfs-tools/hooks/edid'

#!/bin/sh

. '/usr/share/initramfs-tools/hook-functions'

mkdir -p $DESTDIR'/usr/lib/firmware/edid'
cp '/usr/lib/firmware/edid/785-cta871-eDP.bin' $DESTDIR'/usr/lib/firmware/edid/785-cta871-eDP.bin'

# End

sudo update-initramfs -k 'all' -c

sudo -e '/etc/default/grub' && sudo update-grub

drm.edid_firmware='eDP-1:edid/785-cta871-eDP.bin'

Section "Monitor"
    Identifier "eDP1"
    Modeline "1920x1080_78.5" 175.997 1920 1928 1960 2000 1080 1107 1115 1121 +HSync -VSync
    Modeline "1280x720_78.5" 79.749 1280 1288 1320 1360 720 733 741 747 +HSync -VSync
    Modeline "1024x768_78.5" 69.071 1024 1032 1064 1104 768 783 791 797 +HSync -VSync
    Modeline "800x600_78.5" 43.036 800 808 840 880 600 609 617 623 +HSync -VSync
    Modeline "640x480_78.5" 28.146 640 648 680 720 480 484 492 498 +HSync -VSync
    Option "PreferredMode" "1920x1080_78.5"
EndSection

# End

xfce4-session-settings

'/usr/bin/bash' -c "'/usr/bin/xrandr' --output 'eDP1' --set 'Colorspace' 'RGB_WIDE_FLOAT' --set 'max bpc' '12' --set 'Broadcast RGB' 'Full' --set 'scaling mode' 'Full aspect'"

• No Established resolutions
• No Detailed resolutions
• No Standard resolutions
• 1 Extension block (CTA-861)

• All CVT-RB2 standard
• Refresh rate: 78.5

• 1920×1080
• 1280×720
• 1024×768
• 800×600
• 640×480

• HDMI support

• [x] Maximum TMDS clock: 340 MHz
• Content types: [x] Game