$ xrandr -d :0 -q --verbose
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x41
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
HDMI1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x42
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
DP1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x43
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
HDMI2 connected 1280x1024+0+0 (0x4a) normal (normal left inverted right x axis y axis) 1600mm x 900mm
	Identifier: 0x44
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTC:       0
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID:
		00ffffffffffff004dd9015c01010101
		0112010380a05a780a0dc9a057479827
		12484c21080081800101010101010101
		010101010101023a801871382d40582c
		450040846300001e011d007251d01e20
		6e28550040846300001e000000fc0053
		4f4e592054562058560a2020000000fd
		00303e0e460f000a20202020202001e4
  1920x1080 (0x48)  148.5MHz +HSync +VSync +preferred
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock   67.5KHz
        v: height 1080 start 1084 end 1089 total 1125           clock   60.0Hz
  1920x1080 (0x49)  148.5MHz +HSync +VSync
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock   56.2KHz
        v: height 1080 start 1084 end 1089 total 1125           clock   50.0Hz
  1280x1024 (0x4a)  108.0MHz +HSync +VSync *current
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock   64.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   60.0Hz
  1280x720 (0x4b)   74.2MHz +HSync +VSync
        h: width  1280 start 1720 end 1760 total 1980 skew    0 clock   37.5KHz
        v: height  720 start  725 end  730 total  750           clock   50.0Hz
  1280x720 (0x4c)   74.2MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock   45.0KHz
        v: height  720 start  725 end  730 total  750           clock   60.0Hz
  1024x768 (0x4d)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x4e)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  640x480 (0x4f)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   60.0Hz
HDMI3 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x45
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
DP2 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x46
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
DP3 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x47
	Timestamp:  25926393
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: