I have also encountered this with both Intel and ATI cards
djc@blado:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1200
359mm x 287mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1280 x 1024 @ [60]
[1] 1024 x 768 @ [75, 60]
[2] 800 x 600 @ [75, 60]
[3] 640 x 480 @ [75, 60]
[4] 720 x 400 @ [70]
Rotations: normal right inverted left
Outputs:
VGA-0 (not connected)
S-video (not connected)
DVI-0 (359mm x 287mm)
Modes:
[0] 1280 x 1024 @ 60 *
[1] 1280 x 1024 @ 59 (preferred)
[2] 1024 x 768 @ 75
[3] 1024 x 768 @ 60
[4] 800 x 600 @ 75
[5] 800 x 600 @ 60
[6] 640 x 480 @ 75
[7] 640 x 480 @ 60
[8] 720 x 400 @ 70
Rotations: normal right inverted left
djc@blado:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1200
359mm x 287mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1280 x 1024 @ [60]
[1] 1024 x 768 @ [75, 60]
[2] 800 x 600 @ [75, 60]
[3] 640 x 480 @ [75, 60]
[4] 720 x 400 @ [70]
Rotations: normal right inverted left
Outputs:
VGA-0 (0mm x 0mm)
Modes:
[0] 1280 x 800 @ 59 (preferred)
[1] 1280 x 768 @ 60
[2] 1024 x 768 @ 60
[3] 800 x 600 @ 60
[4] 640 x 480 @ 59
Rotations: normal
S-video (not connected)
DVI-0 (359mm x 287mm)
Modes:
[0] 1280 x 1024 @ 60 *
[1] 1280 x 1024 @ 59 (preferred)
[2] 1024 x 768 @ 75
[3] 1024 x 768 @ 60
[4] 800 x 600 @ 75
[5] 800 x 600 @ 60
[6] 640 x 480 @ 75
[7] 640 x 480 @ 60
[8] 720 x 400 @ 70
Rotations: normal right inverted left
djc@blado:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1200
359mm x 287mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1280 x 1024 @ [60]
[1] 1024 x 768 @ [75, 60]
[2] 800 x 600 @ [75, 60]
[3] 640 x 480 @ [75, 60]
[4] 720 x 400 @ [70]
Rotations: normal right inverted left
Outputs:
VGA-0 (0mm x 0mm)
Modes:
[0] 1280 x 800 @ 59 (preferred)
[1] 1280 x 768 @ 60
[2] 1024 x 768 @ 60
[3] 800 x 600 @ 60
[4] 640 x 480 @ 59
Rotations: normal
S-video (not connected)
DVI-0 (359mm x 287mm)
Modes:
[0] 1280 x 1024 @ 60 *
[1] 1280 x 1024 @ 59 (preferred)
[2] 1024 x 768 @ 75
[3] 1024 x 768 @ 60
[4] 800 x 600 @ 75
[5] 800 x 600 @ 60
[6] 640 x 480 @ 75
[7] 640 x 480 @ 60
[8] 720 x 400 @ 70
Rotations: normal right inverted left
djc@blado:~$ pyxrandr --output VGA-0 --preferred
XRandR 1.2
djc@blado:~$ pyxrandr --output VGA-0 --off
XRandR 1.2
djc@blado:~$ pyxrandr --output VGA-0 --preferred
XRandR 1.2
djc@blado:~$ pyxrandr --output DVI-0 --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 17
Current serial number in output stream: 18
djc@blado:~$
djc@Twingo:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2624 x 1968
304mm x 228mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1024 x 768 @ [60, 50]
[1] 800 x 600 @ [60]
[2] 640 x 480 @ [60]
Rotations: normal right inverted left
Outputs:
LVDS (304mm x 228mm)
Modes:
[0] 1024 x 768 @ 60 *
[1] 1024 x 768 @ 49 (preferred)
[2] 800 x 600 @ 60
[3] 640 x 480 @ 60
[4] 640 x 480 @ 59
Rotations: normal right inverted left
VGA (not connected)
djc@Twingo:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2624 x 1968
304mm x 228mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1024 x 768 @ [60, 50]
[1] 800 x 600 @ [60]
[2] 640 x 480 @ [60]
Rotations: normal right inverted left
Outputs:
LVDS (304mm x 228mm)
Modes:
[0] 1024 x 768 @ 60 *
[1] 1024 x 768 @ 49 (preferred)
[2] 800 x 600 @ 60
[3] 640 x 480 @ 60
[4] 640 x 480 @ 59
Rotations: normal right inverted left
VGA (0mm x 0mm)
Modes:
[0] 1280 x 800 @ 59 (preferred)
[1] 1280 x 768 @ 60
[2] 1024 x 768 @ 60
[3] 800 x 600 @ 60
[4] 640 x 480 @ 59
Rotations: normal
djc@Twingo:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2624 x 1968
304mm x 228mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1024 x 768 @ [60, 50]
[1] 800 x 600 @ [60]
[2] 640 x 480 @ [60]
Rotations: normal right inverted left
Outputs:
LVDS (304mm x 228mm)
Modes:
[0] 1024 x 768 @ 60 *
[1] 1024 x 768 @ 49 (preferred)
[2] 800 x 600 @ 60
[3] 640 x 480 @ 60
[4] 640 x 480 @ 59
Rotations: normal right inverted left
VGA (367mm x 275mm)
Modes:
[0] 1600 x 1200 @ 60
[1] 1600 x 1200 @ 59 (preferred)
[2] 1280 x 1024 @ 75
[3] 1280 x 1024 @ 59
[4] 1152 x 864 @ 74
[5] 1024 x 768 @ 75
[6] 1024 x 768 @ 60
[7] 800 x 600 @ 75
[8] 800 x 600 @ 60
[9] 640 x 480 @ 75
[10] 640 x 480 @ 60
[11] 720 x 400 @ 70
Rotations: normal
djc@Twingo:~$ pyxrandr --output VGA --preferred --same-as LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output LVDS --off
XRandR 1.2
djc@Twingo:~$ pyxrandr --output LVDS --preferred
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --preferred --right-of LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --preferred --left-of LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --preferred --same-as LVDS
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output LVDS --preferred --same-as VGA
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output LVDS --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --off --output LVDS --preferred
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output LVDS --preferred
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --preferred --right-of LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --preferred --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$
I have also encountered this with both Intel and ATI cards
djc@blado:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1200
359mm x 287mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1280 x 1024 @ [60]
[1] 1024 x 768 @ [75, 60]
[2] 800 x 600 @ [75, 60]
[3] 640 x 480 @ [75, 60]
[4] 720 x 400 @ [70]
Rotations: normal right inverted left
Outputs:
VGA-0 (not connected)
S-video (not connected)
DVI-0 (359mm x 287mm)
Modes:
[0] 1280 x 1024 @ 60 *
[1] 1280 x 1024 @ 59 (preferred)
[2] 1024 x 768 @ 75
[3] 1024 x 768 @ 60
[4] 800 x 600 @ 75
[5] 800 x 600 @ 60
[6] 640 x 480 @ 75
[7] 640 x 480 @ 60
[8] 720 x 400 @ 70
Rotations: normal right inverted left
djc@blado:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1200
359mm x 287mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1280 x 1024 @ [60]
[1] 1024 x 768 @ [75, 60]
[2] 800 x 600 @ [75, 60]
[3] 640 x 480 @ [75, 60]
[4] 720 x 400 @ [70]
Rotations: normal right inverted left
Outputs:
VGA-0 (0mm x 0mm)
Modes:
[0] 1280 x 800 @ 59 (preferred)
[1] 1280 x 768 @ 60
[2] 1024 x 768 @ 60
[3] 800 x 600 @ 60
[4] 640 x 480 @ 59
Rotations: normal
S-video (not connected)
DVI-0 (359mm x 287mm)
Modes:
[0] 1280 x 1024 @ 60 *
[1] 1280 x 1024 @ 59 (preferred)
[2] 1024 x 768 @ 75
[3] 1024 x 768 @ 60
[4] 800 x 600 @ 75
[5] 800 x 600 @ 60
[6] 640 x 480 @ 75
[7] 640 x 480 @ 60
[8] 720 x 400 @ 70
Rotations: normal right inverted left
djc@blado:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1280 x 1200
359mm x 287mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1280 x 1024 @ [60]
[1] 1024 x 768 @ [75, 60]
[2] 800 x 600 @ [75, 60]
[3] 640 x 480 @ [75, 60]
[4] 720 x 400 @ [70]
Rotations: normal right inverted left
Outputs:
VGA-0 (0mm x 0mm)
Modes:
[0] 1280 x 800 @ 59 (preferred)
[1] 1280 x 768 @ 60
[2] 1024 x 768 @ 60
[3] 800 x 600 @ 60
[4] 640 x 480 @ 59
Rotations: normal
S-video (not connected)
DVI-0 (359mm x 287mm)
Modes:
[0] 1280 x 1024 @ 60 *
[1] 1280 x 1024 @ 59 (preferred)
[2] 1024 x 768 @ 75
[3] 1024 x 768 @ 60
[4] 800 x 600 @ 75
[5] 800 x 600 @ 60
[6] 640 x 480 @ 75
[7] 640 x 480 @ 60
[8] 720 x 400 @ 70
Rotations: normal right inverted left
djc@blado:~$ pyxrandr --output VGA-0 --preferred
XRandR 1.2
djc@blado:~$ pyxrandr --output VGA-0 --off
XRandR 1.2
djc@blado:~$ pyxrandr --output VGA-0 --preferred
XRandR 1.2
djc@blado:~$ pyxrandr --output DVI-0 --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 17
Current serial number in output stream: 18
djc@blado:~$
djc@Twingo:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2624 x 1968
304mm x 228mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1024 x 768 @ [60, 50]
[1] 800 x 600 @ [60]
[2] 640 x 480 @ [60]
Rotations: normal right inverted left
Outputs:
LVDS (304mm x 228mm)
Modes:
[0] 1024 x 768 @ 60 *
[1] 1024 x 768 @ 49 (preferred)
[2] 800 x 600 @ 60
[3] 640 x 480 @ 60
[4] 640 x 480 @ 59
Rotations: normal right inverted left
VGA (not connected)
djc@Twingo:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2624 x 1968
304mm x 228mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1024 x 768 @ [60, 50]
[1] 800 x 600 @ [60]
[2] 640 x 480 @ [60]
Rotations: normal right inverted left
Outputs:
LVDS (304mm x 228mm)
Modes:
[0] 1024 x 768 @ 60 *
[1] 1024 x 768 @ 49 (preferred)
[2] 800 x 600 @ 60
[3] 640 x 480 @ 60
[4] 640 x 480 @ 59
Rotations: normal right inverted left
VGA (0mm x 0mm)
Modes:
[0] 1280 x 800 @ 59 (preferred)
[1] 1280 x 768 @ 60
[2] 1024 x 768 @ 60
[3] 800 x 600 @ 60
[4] 640 x 480 @ 59
Rotations: normal
djc@Twingo:~$ pyxrandr
XRandR 1.2
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2624 x 1968
304mm x 228mm
Crtcs: 2
Sizes @ Refresh Rates:
[0] 1024 x 768 @ [60, 50]
[1] 800 x 600 @ [60]
[2] 640 x 480 @ [60]
Rotations: normal right inverted left
Outputs:
LVDS (304mm x 228mm)
Modes:
[0] 1024 x 768 @ 60 *
[1] 1024 x 768 @ 49 (preferred)
[2] 800 x 600 @ 60
[3] 640 x 480 @ 60
[4] 640 x 480 @ 59
Rotations: normal right inverted left
VGA (367mm x 275mm)
Modes:
[0] 1600 x 1200 @ 60
[1] 1600 x 1200 @ 59 (preferred)
[2] 1280 x 1024 @ 75
[3] 1280 x 1024 @ 59
[4] 1152 x 864 @ 74
[5] 1024 x 768 @ 75
[6] 1024 x 768 @ 60
[7] 800 x 600 @ 75
[8] 800 x 600 @ 60
[9] 640 x 480 @ 75
[10] 640 x 480 @ 60
[11] 720 x 400 @ 70
Rotations: normal
djc@Twingo:~$ pyxrandr --output VGA --preferred --same-as LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output LVDS --off
XRandR 1.2
djc@Twingo:~$ pyxrandr --output LVDS --preferred
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --preferred --right-of LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --preferred --left-of LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --preferred --same-as LVDS
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output LVDS --preferred --same-as VGA
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output LVDS --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --off --output LVDS --preferred
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output LVDS --preferred
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --preferred --right-of LVDS
XRandR 1.2
djc@Twingo:~$ pyxrandr --output VGA --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$ pyxrandr --output VGA --preferred --off
XRandR 1.2
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 7 ()
Serial number of failed request: 16
Current serial number in output stream: 17
djc@Twingo:~$