xrandr: Failed to get size of gamma for output default Screen 0: minimum 1024 x 600, current 1024 x 600, maximum 1024 x 600 default connected 1024x600+0+0 (0x521) normal (normal) 0mm x 0mm Identifier: 0x520 Timestamp: 89281 Subpixel: horizontal rgb 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: non-desktop: 0 supported: 0, 1 1024x600 (0x521) 0.000MHz *current h: width 1024 start 0 end 0 total 1024 skew 0 clock 0.00KHz v: height 600 start 0 end 0 total 600 clock 0.00Hz