xrandr: Failed to get size of gamma for output default Screen 0: minimum 3456 x 2160, current 3456 x 2160, maximum 3456 x 2160 default connected primary 3456x2160+0+0 (0x525) normal (normal) 0mm x 0mm Identifier: 0x524 Timestamp: 18449 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 3456x2160 (0x525) 664.381MHz *current h: width 3456 start 0 end 0 total 3456 skew 0 clock 192.24KHz v: height 2160 start 0 end 0 total 2160 clock 89.00Hz