xrandr: Failed to get size of gamma for output default
Screen 0: minimum 2880 x 900, current 2880 x 900, maximum 2880 x 900
default connected 2880x900+0+0 (0x161) normal (normal) 0mm x 0mm
	Identifier: 0x160
	Timestamp:  408552
	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: 
  2880x900 (0x161)  129.6MHz *current
        h: width  2880 start    0 end    0 total 2880 skew    0 clock   45.0KHz
        v: height  900 start    0 end    0 total  900           clock   50.0Hz