xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 (0x138) normal (normal) 0mm x 0mm
	Identifier: 0x137
	Timestamp:  22813
	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: 
  1920x1080 (0x138)  159.7MHz *current
        h: width  1920 start    0 end    0 total 1920 skew    0 clock   83.2KHz
        v: height 1080 start    0 end    0 total 1080           clock   77.0Hz