Arch Linux

dantekb43

Member

Registered: 2021-04-25

Posts: 6

Issues with 120Hz display through HDMI

Hi everyone!

I'm having issues setting up a 120Hz display through HDMI. I'm using an AMD GPU (Radeon 5700XT), GNOME 3 DE.

I've tried forcing the resolution through xrandr by using both cvt/gtf commands.
I can set the resolution 1920x1080 up to 100Hz, but anything else above that the screen starts to show a "pink" color, and at about 120hz the display flickers and sometimes loses connection.

The thing is, I know my monitor is capable of displaying 120Hz through HDMI because i use the exact same setup on Windows, and there the 120Hz mode is enabled without any issues.
Also, if it helps, it works perfectly normal through DisplayPort, the issue is that i have to use HDMI right now.
Below is the output for xrandr (the last modes are my attempts of setting the refresh rate).

Thanks for the help in advance.

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00 +  50.00    59.94    24.00    23.98  
   1680x1050     60.00  
   1280x1024     75.02    60.02  
   1440x900     119.85    59.90  
   1280x800      60.00  
   1280x720      60.00    50.00    59.94  
   1024x768     119.99    75.03    60.00  
   800x600      119.97    75.00    60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
   1920x1080_120.00 119.93  
   1920x1080_90.00  89.93  
   1920x1080_100.00  99.90  
   1920x1080_101.00 100.97  
   1920x1080_120.00_v1 120.00  
   1920_1080_100 100.00  
   1920_1080_95  95.00  
   1920_1080_99  99.00  
   1920_1080_96  95.94*