xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 (0x1b4) normal (normal) 0mm x 0mm
	Identifier: 0x1b3
	Timestamp:  35023
	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: 
  1024x768 (0x1b4)   39.3MHz *current
        h: width  1024 start    0 end    0 total 1024 skew    0 clock   38.4KHz
        v: height  768 start    0 end    0 total  768           clock   50.0Hz
  800x600 (0x1b5)   24.5MHz
        h: width   800 start    0 end    0 total  800 skew    0 clock   30.6KHz
        v: height  600 start    0 end    0 total  600           clock   51.0Hz
  800x600 (0x1b6)   25.0MHz
        h: width   800 start    0 end    0 total  800 skew    0 clock   31.2KHz
        v: height  600 start    0 end    0 total  600           clock   52.0Hz
  800x600 (0x1b7)   25.4MHz
        h: width   800 start    0 end    0 total  800 skew    0 clock   31.8KHz
        v: height  600 start    0 end    0 total  600           clock   53.0Hz
  680x384 (0x1b8)   14.1MHz
        h: width   680 start    0 end    0 total  680 skew    0 clock   20.7KHz
        v: height  384 start    0 end    0 total  384           clock   54.0Hz
  680x384 (0x1b9)   14.4MHz
        h: width   680 start    0 end    0 total  680 skew    0 clock   21.1KHz
        v: height  384 start    0 end    0 total  384           clock   55.0Hz
  640x480 (0x1ba)   17.2MHz
        h: width   640 start    0 end    0 total  640 skew    0 clock   26.9KHz
        v: height  480 start    0 end    0 total  480           clock   56.0Hz
  576x432 (0x1bb)   14.2MHz
        h: width   576 start    0 end    0 total  576 skew    0 clock   24.6KHz
        v: height  432 start    0 end    0 total  432           clock   57.0Hz
  512x384 (0x1bc)   11.4MHz
        h: width   512 start    0 end    0 total  512 skew    0 clock   22.3KHz
        v: height  384 start    0 end    0 total  384           clock   58.0Hz
  400x300 (0x1bd)    7.1MHz
        h: width   400 start    0 end    0 total  400 skew    0 clock   17.7KHz
        v: height  300 start    0 end    0 total  300           clock   59.0Hz
  400x300 (0x1be)    7.2MHz
        h: width   400 start    0 end    0 total  400 skew    0 clock   18.0KHz
        v: height  300 start    0 end    0 total  300           clock   60.0Hz
  400x300 (0x1bf)    7.3MHz
        h: width   400 start    0 end    0 total  400 skew    0 clock   18.3KHz
        v: height  300 start    0 end    0 total  300           clock   61.0Hz
  320x240 (0x1c0)    4.8MHz
        h: width   320 start    0 end    0 total  320 skew    0 clock   14.9KHz
        v: height  240 start    0 end    0 total  240           clock   62.0Hz