Arch Linux

Spxctre

Member

Registered: 2023-11-07

Posts: 1

Wayland display overclocking with custom timings

Using Wayland has been extremely frustrating as it seems the most basic of features are lacking.

On X11 I am able to use these lines to add a custom resolution with modified CVT-RB2 timings that allow my secondary monitor to be overclocked up to 72Hz.

xrandr --newmode "1920x1080_72.00_rb2"  160.85  1920 1928 1960 2000  1080 1103 1111 1117 +hsync -vsync
xrandr --addmode HDMI-4 "1920x1080_72.00_rb2"
xrandr --output HDMI-4 --mode 1920x1080_72.00_rb2

In Wayland, I can add refresh rates by appending the following to my kernel parameters in my kernel entry in systemd-boot:

video=HDMI-A-4:1920x1080@72

This, however, does not work because it does not use the custom timings required to drive my secondary monitor at 72Hz; my monitor will simply output "Out of Range".

How would I add a custom resolution in Wayland with custom timings, if even possible?

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,457

Re: Wayland display overclocking with custom timings

Unfortunately is not that easy, but still possible, if you force an edid.

https://wiki.archlinux.org/title/Kernel … s_and_EDID

Also

https://github.com/kevinlekiller/linux_ … erclocking

Last edited by kokoko3k (2023-11-08 05:53:52)

---

Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !