kostas@kostas-laptop:~$ xrandr --verbose
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 1280 x 1824
VGA-0 connected (normal left inverted right x axis y axis)
	Identifier: 0x4c
	Timestamp:  28981
	Subpixel:   no subpixels
	Clones:     DVI-0
	CRTCs:      0 1
	load_detection: 1 (0x00000001) range:  (0,1)
  1152x864 (0xa3)   81.6MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock   53.7KHz
        v: height  864 start  865 end  868 total  895           clock   60.0Hz
  1024x768 (0xa4)   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 (0xa5)   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 (0xa6)   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   59.9Hz
LVDS connected 1280x800+0+0 (0x4f) normal (normal left inverted right x axis y axis) 331mm x 207mm
	Identifier: 0x4d
	Timestamp:  28981
	Subpixel:   horizontal rgb
	Clones:    
	CRTC:       0
	CRTCs:      0
	EDID_DATA:
		00ffffffffffff0006af0d0f00000000
		010e0103802115780a859599574f8f26
		21505400000001010101010101010101
		010101010101ea1a0080502010301520
		44004bcf100000180000000f00423135
		344557303120562e3702000000fe0041
		554f0a202020202020202020000000fe
		00423135344557303120562e370a008a
		scaler: full
  1280x800 (0x4f)   68.9MHz -HSync -VSync *current +preferred
        h: width  1280 start 1301 end 1333 total 1408 skew    0 clock   48.9KHz
        v: height  800 start  804 end  808 total  816           clock   60.0Hz
DVI-0 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x4e
	Timestamp:  28981
	Subpixel:   no subpixels
	Clones:     VGA-0
	CRTCs:      0 1
		scaler: off