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Overvolt

Member

Registered: 2024-06-06

Posts: 2

[SOLVED] Display Overclocking Issues on X11 using xrandr

I'm trying to overclock my second and now main monitor as my old main 144Hz monitor just died. The new main monitor natively runs at 60Hz and when I was running windows, I had it overclocked stably for 6 years at 85Hz, pretty much since I got it. I moved over to Linux maybe 2 years ago and would consider myself and intermediate user and comfortable with the command line. I tried overclocking with xrandr, when I select the new 85Hz mode the screen glitches out until I change back to 60Hz, I know it is stable at 85Hz so what could I be doing wrong? I also tried to overclock it to a lower value of 80Hz with the same outcome.

I followed this guide I found on YouTube, but input my outputs where necessary:

https://www.youtube.com/watch?v=VN4dL-k42YU

I should mention I have two monitors now, one, the one I'm trying to overclock is the native 60Hz, and the second a new in box CRT than runs at 85Hz natively, I have tear-free on, and I am also on an all AMD system: RX 6700 XT, and a Ryzen 5 5600, I am using the open source AMD drivers. Also is there a way to make the change persistent if I get it working

Last edited by Overvolt (2024-06-06 08:17:58)

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,463

Re: [SOLVED] Display Overclocking Issues on X11 using xrandr

Please, just post plain text describing the method you used.

Last edited by kokoko3k (2024-06-06 04:03:32)

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Overvolt

Member

Registered: 2024-06-06

Posts: 2

Re: [SOLVED] Display Overclocking Issues on X11 using xrandr

Hello, sorry for my formatting issues, this is my first post on the forums! I'll make sure to correct that in my next posts. I figured it out however, It seems the timings that  "cvt 1920 1080 85.00" was outputting weren't quite right for my monitor, instead I used a CVT calculator and used it's custom timings it provided: https://tomverbeure.github.io/video_timings_calculator.

Here's what ended up working for me:

#!/bin/bash
#Monitor Overclock
xrandr --newmode "1920x1080_85.00" 184.62 1920 1928 1960 2000 1080 1110 1118 1124 -hsync +vsync

xrandr --addmode HDMI-A-0 1920x1080_85.00

Made the scrip exactable with: sudo chmod +x Monitor-overclock-script.sh

I then copied it to /etc/X11/xinit/xinitrc.d

sudo cp /home/$USER/Documents/Monitor-overclock-script.sh /etc/X11/xinit/xinitrc.d

The monitor overclock now works and is now persistent on boot.

Last edited by Overvolt (2024-06-06 08:21:52)

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,463

Re: [SOLVED] Display Overclocking Issues on X11 using xrandr

https://en.wikipedia.org/wiki/Rubber_duck_debugging

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