Display resolution failure

[Mr_Magoo]

See if this helps:

How can I permanently set the screen resolution?

That resolution's already added, since it's the resolution you're using right now. Not sure if that's causing the error. Try it without the -r flag... it should attempt to use a resolution that you've set up that's closest to the highest frequency capability of the monitor. So for instance, say you wanted to set it to 1600x900: sudo xrandr --output HDMI-0 --mode 1600x900 -- or -- sudo xrandr --output HDMI-0 --mode 1600x900 --rate 60 -- or -- sudo xrandr --output HDMI-0 --mode 1600x900 --r…