activating and deactivating outputs sometimes doesn't work
Bug #176858 reported by
Rafał Rzepecki
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Python-XRandR |
New
|
Undecided
|
Unassigned | ||
Bug Description
I've been trying to write a simple output-state cycling utility (to bind to switch outputs hotkey) using python-xrandr.
Alas, sometimes it would just throw BadMatch X errors and won't work. I can't seem to pinpoint when exactly that happens, although it is after a few cycles. To try it, run the attached script several times with at least two outputs connected.
Revision history for this message
| Rafał Rzepecki (divided-mind) wrote | #1 |
Revision history for this message
| Dr D J Clark (djc-online) wrote | #2 |
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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 @ Refr...