Arch Linux

mrgreenacid

Member

Registered: 2016-06-04

Posts: 8

xrandr refresh rate not applying

I am running:

 xrandr --output HDMI-A-1 --mode 2560x1440 --rate 143.91 

The mode is reported by my monitor and in the output of xrandr:

Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 16384 x 16384
DisplayPort-0 disconnected primary (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
HDMI-A-1 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.95*+ 143.91  
   2560x1080     60.00    59.94  
   1920x1200     59.95  
   1920x1080     60.00    50.00    59.94  
   1600x1200     60.00  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.95  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    60.00    59.94  
   720x400       70.08  
   2560x1400_144.00 143.95  
DVI-D-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+
   1600x1200     60.00  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x800      60.00  
   1152x864      75.00  
   1280x720      60.00  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   640x480       75.00    72.81    66.67    59.94  
   720x400       70.08  

The screen briefly turns off when I run the command however xrandr still reports 60hz. I have also tried adding a new mode "2560x1440_144.00" with modeline generated by

cvt 2560 1440 144.00

and a few other refresh rates, all supported by my monitor; however with adding modes I cannot set them, xrandr returns an error. The 144Hz mode works fine on windows, so nothing wrong with gpu/hdmi cable support. I am using amdgpu with a fully updated system.

Last edited by mrgreenacid (2020-02-13 19:58:45)