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I am trying to switch screen resolution with xrandr. I have output the available modes with xrandr -q
which output:
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 346mm x 194mm 3840x2160 60.00 + 2048x1536 60.00 1920x1440 60.00 1856x1392 60.01 1792x1344 60.01 1920x1200 59.95 1920x1080 59.93* 1600x1200 60.00 1680x1050 59.95 59.88 1600x1024 60.17 1400x1050 59.98 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1360x768 59.80 59.96 1152x864 60.00 1024x768 60.04 60.00 960x720 60.00 928x696 60.05 896x672 60.01 960x600 60.00 960x540 59.99 800x600 60.00 60.32 56.25 840x525 60.01 59.88 800x512 60.17 700x525 59.98 640x512 60.02 720x450 59.89 640x480 60.00 59.94 680x384 59.80 59.96 576x432 60.06 512x384 60.00 400x300 60.32 56.34 320x240 60.05 DP-1-1 disconnected (normal left inverted right x axis y axis) HDMI-1-1 disconnected (normal left inverted right x axis y axis) DP-1-2 disconnected (normal left inverted right x axis y axis) HDMI-1-2 disconnected (normal left inverted right x axis y axis)
As you can see I am currently on 1920x1080, I am trying to switch to the preferred resolution of 3840x2160. So I try to switch:
$ xrandr -s 3840x2160 Size 3840x2160 not found in available modes
I've tried switching by index:
$ xrandr -s 1 Size index 1 is too large, there are only 1 sizes
I tried adding the screen name with --screen 0:
but that doesn't change the result.
Am I missing something or am I doing anything wrong?
Standard debugging tip: does it work w/ other resolutions? I notice that 3840x2160 has a "+" in the
xrandr -q
list, whereas most of the other resolutions don't. Try some other resolutions and narrow it down. – barrycarter – 2017-10-07T22:41:28.543Nope, none of them work (except 1920x1080, but that just flashes the screen). + means preferred resolution of the display (so usually the native one) – user2117418 – 2017-10-08T09:35:38.867
Try
xrandr -q --verbose
but I'm just guessing at this point. You may also mess around withxrandr --rate
, since 59.93 seems like an unusual refresh rate. – barrycarter – 2017-10-08T12:09:38.750