When I type xrandr and press enter, the output I get says that I have 144.0 hz available to use on my 1920x1080 resolution, but when I try the command:
xrandr -s 1920x1080 -r 144.0
or 144 without .0 I get the message:
Rate 144.0 Hz not available for this size
I get that message with every possible refresh rate, even the current using refresh rate (60 Hz). I have nvidia-settings installed which also handles the refresh rate, might the problem be there?
I had the same problem with my 144hz monitor. You might try using a full set of parameters. For example, to get my 2560x1440 screen to operate at 144hz, I had to do the following:
Run xrandr to find the name of your connected display output. In this case, DP-0 is my connected DisplayPort:
$ xrandr
Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 598mm x 336mm
2560x1440 59.95*+ 144.00 120.00 99.95 84.98 23.97
DP-1 disconnected (normal left inverted right x axis y axis)
Then use the xrandr command again with the --output, --mode, and --rate parameters. For my 2560x1440 monitor, I specified the following:
$ xrandr --output DP-0 --mode 2560x1440 --rate 144.00
The monitor blinks and switches to the new rate. I'm not sure how to properly use the -s parameter.
--output. I guessxrandrwas targeting the first output in the list or something (while my screen is connected in the second one). – mathielo Oct 17 '19 at 13:55