definition from it's manual:
xrandr - primitive command line interface to RandR extension
Xrandr is used to set the size, orientation and/or reflection of the outputs for a screen. It can also set the screen size.
To rotate screen orientation back to normal
xrandr -o normal
To show list output with supported resolution
xrandr
To disable one output
xrandr –output ID –off
To set resolution of HDMI-1 output to 3440x1440
comments powered by Disqusxrandr –output HDMI-1 –mode 3440x1440