xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1920 x 1080, maximum 1920 x 1080 default connected 1920x1080+0+0 (0x401) normal (normal) 0mm x 0mm Identifier: 0x400 Timestamp: 14442 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 1920x1080 (0x401) 0.000MHz *current h: width 1920 start 0 end 0 total 1920 skew 0 clock 0.00KHz v: height 1080 start 0 end 0 total 1080 clock 0.00Hz 1400x1050 (0x402) 0.000MHz h: width 1400 start 0 end 0 total 1400 skew 0 clock 0.00KHz v: height 1050 start 0 end 0 total 1050 clock 0.00Hz 1280x1024 (0x403) 0.000MHz h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.00KHz v: height 1024 start 0 end 0 total 1024 clock 0.00Hz 1280x960 (0x404) 0.000MHz h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.00KHz v: height 960 start 0 end 0 total 960 clock 0.00Hz 1280x720 (0x405) 0.000MHz h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.00KHz v: height 720 start 0 end 0 total 720 clock 0.00Hz 1024x768 (0x406) 0.000MHz h: width 1024 start 0 end 0 total 1024 skew 0 clock 0.00KHz v: height 768 start 0 end 0 total 768 clock 0.00Hz 800x600 (0x407) 0.000MHz h: width 800 start 0 end 0 total 800 skew 0 clock 0.00KHz v: height 600 start 0 end 0 total 600 clock 0.00Hz 640x480 (0x408) 0.000MHz h: width 640 start 0 end 0 total 640 skew 0 clock 0.00KHz v: height 480 start 0 end 0 total 480 clock 0.00Hz