xrandr: Failed to get size of gamma for output default
Screen 0: minimum 3840 x 1200, current 3840 x 1200, maximum 3840 x 1200
default connected 3840x1200+0+0 (0x161) normal (normal) 0mm x 0mm
	Identifier: 0x160
	Timestamp:  208946
	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: 
  3840x1200 (0x161)  230.4MHz *current
        h: width  3840 start    0 end    0 total 3840 skew    0 clock   60.0KHz
        v: height 1200 start    0 end    0 total 1200           clock   50.0Hz