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 primary 1920x1080+0+0 (0x17d) normal (normal) 0mm x 0mm Identifier: 0x17c Timestamp: 18451 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: 1920x1080 (0x17d) 0.0MHz *current h: width 1920 start 0 end 0 total 1920 skew 0 clock 0.0KHz v: height 1080 start 0 end 0 total 1080 clock 0.0Hz 1280x1024 (0x17e) 0.0MHz h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.0KHz v: height 1024 start 0 end 0 total 1024 clock 0.0Hz 1280x800 (0x17f) 0.0MHz h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.0KHz v: height 800 start 0 end 0 total 800 clock 0.0Hz 1024x768 (0x180) 0.0MHz h: width 1024 start 0 end 0 total 1024 skew 0 clock 0.0KHz v: height 768 start 0 end 0 total 768 clock 0.0Hz 800x600 (0x181) 0.0MHz h: width 800 start 0 end 0 total 800 skew 0 clock 0.0KHz v: height 600 start 0 end 0 total 600 clock 0.0Hz 640x480 (0x182) 0.0MHz h: width 640 start 0 end 0 total 640 skew 0 clock 0.0KHz v: height 480 start 0 end 0 total 480 clock 0.0Hz