xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480 default connected primary 640x480+0+0 (0x529) normal (normal) 0mm x 0mm Identifier: 0x528 Timestamp: 101036 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: _MUTTER_PRESENTATION_OUTPUT: 0 non-desktop: 0 supported: 0, 1 640x480 (0x529) 22.426MHz *current h: width 640 start 0 end 0 total 640 skew 0 clock 35.04KHz v: height 480 start 0 end 0 total 480 clock 73.00Hz