Whenever I try to change the screen rotation on my display:
xrandr -o left # or xrandr --output default --rotate left or just by running xrandr, i get an error message saying:
Failed to get size of gamma for output default. Heres the output of xrandr --verbose:
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768 default connected 1024x768+0+0 (0xed) normal (normal) 0mm x 0mm Identifier: 0xec Timestamp: 792077 Subpixel: unknown Clones: CRTC: 0 CRTCs: 0 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: 1024x768 (0xed) 47.2MHz *current h: width 1024 start 0 end 0 total 1024 skew 0 clock 46.1KHz v: height 768 start 0 end 0 total 768 clock 60.0Hz 