xrand --prop

$ xrandr --prop
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
	EDID:
		00ffffffffffff0030ae114000000000
		00130103801a1078ea1825975c5d9229
		22505400000001010101010101010101
		010101010101c01b00ab502010303440
		330005a310000019c01b00ab50201030
		3440330005a3100000190000000f0081
		0a3c810a3c140a004ca34150000000fe
		004c544e3132314150303430303100f9
	BACKLIGHT: 15 (0x0000000f)	range:  (0,15)
	Backlight: 15 (0x0000000f)	range:  (0,15)
	scaling mode:	Full aspect
		supported: None         Full         Center       Full aspect
   1280x800       60.0*+
   1024x768       60.0
   800x600        60.3     56.2
   640x480        59.9
VGA1 connected (normal left inverted right x axis y axis)
   1024x768       60.0
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9
HDMI1 disconnected (normal left inverted right x axis y axis)
	Broadcast RGB:	Full
		supported: Full         Limited 16:2
	force_audio: 0 (0x00000000)	range:  (-1,1)
DP1 disconnected (normal left inverted right x axis y axis)
	Broadcast RGB:	Full
		supported: Full         Limited 16:2
	force_audio: 0 (0x00000000)	range:  (-1,1)