xrandr: Failed to get size of gamma for output default
Screen 0: minimum 2880 x 1200, current 2880 x 1200, maximum 2880 x 1200
default connected 2880x1200+0+0 (0x281) normal (normal) 0mm x 0mm
	Identifier: 0x280
	Timestamp:  45429
	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: 
  2880x1200 (0x281)  172.8MHz *current
        h: width  2880 start    0 end    0 total 2880 skew    0 clock   60.0KHz
        v: height 1200 start    0 end    0 total 1200           clock   50.0Hz