xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1280 x 800, maximum 1280 x 800
default connected 1280x800+0+0 0mm x 0mm
   1280x800       50.0*
   1024x768       51.0
   960x540        52.0
   840x525        53.0
   800x600        54.0
   800x512        55.0
   720x450        56.0
   700x525        57.0
   680x384        58.0     59.0
   640x512        60.0
   640x480        61.0     62.0
   576x432        63.0
   512x384        64.0
   400x300        65.0
   320x240        66.0