xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1366 x 768, current 1366 x 768, maximum 1368 x 768
default connected primary 1366x768+0+0 (0x2b0) normal (normal) 0mm x 0mm
	Identifier: 0x2af
	Timestamp:  244509
	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: 
	_MUTTER_PRESENTATION_OUTPUT: 0 
  1366x768 (0x2b0)  0.000MHz *current
        h: width  1366 start    0 end    0 total 1366 skew    0 clock   0.00KHz
        v: height  768 start    0 end    0 total  768           clock   0.00Hz
  1368x768 (0x2b1)  0.000MHz
        h: width  1368 start    0 end    0 total 1368 skew    0 clock   0.00KHz
        v: height  768 start    0 end    0 total  768           clock   0.00Hz