Bug 13907

Summary:	Getting xrandr screen information causes probe, causing screen to turn off briefly
Product:	xorg	Reporter:	Ross Burton <ross>
Component:	Driver/intel	Assignee:	Wang Zhenyu <zhenyu.z.wang>
Status:	RESOLVED DUPLICATE	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium	CC:	bugzilla, jbarnes
Version:	7.2 (2007.02)
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Ross Burton 2008-01-03 06:57:01 UTC

Totem on startup gets the screen's randr information so it can resize the screen if it needs to when playing a video, however calling XRRGetScreenInfo() causes an output probe, which means my monitor (connected via VGA) turns off for a second.

This can be replicated with a two-line program:

  Display *dpy = XOpenDisplay (NULL);
  XRRGetScreenInfo (dpy, DefaultRootWindow (dpy));

xserver 1.3.0, -intel 2.1.0, on Debian Sid.

Comment 1 Wang Zhenyu 2008-01-30 23:20:41 UTC

Jesse should have patches for intel driver to get rid of those black screen flashes. 

Jesse, what's current status of your patch?

Comment 2 Jesse Barnes 2008-01-31 02:38:46 UTC

I've got some early code in my personal tree; hopefully we can merge it along with some other modesetting cleanup in the 2.3 release.

Comment 3 Hong Liu 2008-03-05 00:44:13 UTC

Do you have a TV output?
If yes, I think this bug is a duplicate of  bug 13502.

Thanks,
Hong

Comment 4 Ross Burton 2008-03-05 12:36:12 UTC

I believe that my laptop - a thinkpad x60 - has a tv output.  Recently it was quirked out and I haven't seen this for a while either.  Certainly looks like a dup.

*** This bug has been marked as a duplicate of bug 13502 ***

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