Bug 15720 - Screen sometimes goes blank while playing videos
Summary: Screen sometimes goes blank while playing videos
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Wang Zhenyu
QA Contact: Xorg Project Team
Depends on:
Reported: 2008-04-26 06:19 UTC by Bernhard Rosenkraenzer
Modified: 2008-12-28 21:55 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Xorg.0.log (20.92 KB, text/plain)
2008-05-05 05:46 UTC, Bernhard Rosenkraenzer
no flags Details

Description Bernhard Rosenkraenzer 2008-04-26 06:19:16 UTC
When playing videos for a longer time with the xf86-video-intel 2.3 driver, the screen sometimes goes blank and not even restarting X takes it back to displaying anything.

I've never observed this with 2.2.

I've used mplayer with xv to play videos:
mplayer -vo xv -ao alsa -fs whatever.mpg

Except for this, 2.3 works great.
Comment 1 Gordon Jin 2008-04-26 22:16:09 UTC
Please provide more info according to http://www.intellinuxgraphics.org/how_to_report_bug.html.

Can this be steadily reproducible? I suspect if this is triggered by screen saver or other power saving activity which will be activated after a fixed peirod of no-user-operation?
Comment 2 Bernhard Rosenkraenzer 2008-04-29 07:48:41 UTC
Unfortunately there is nothing easily reproducable about this problem.
It happens at different times (screen blanking/DPMS is probably not involved - that would have a constant time from the last time something happened, and mplayer turns those features off anyway), and seems to be totally at random.

The only constant thing is that whenever it happened so far, I was playing a video with Xvideo, leading me to suspect a random bug in the Xvideo support in the driver.

This happens on a 945GM, PCI ID 8086:27a2, subsystem 17c0:4070
Comment 3 Gordon Jin 2008-04-30 02:22:37 UTC
You still need to provide other info according to http://www.intellinuxgraphics.org/how_to_report_bug.html, like Xorg.0.log, xorg.conf and system environment info for other components (like xserver).
Comment 4 Bernhard Rosenkraenzer 2008-05-05 05:46:06 UTC
Created attachment 16359 [details]

Userland is today's git xserver and mesa and xf86-video-intel-2.3.0 (also seen with older xserver and mesa snapshots and xf86-video-intel-2.2.99.x snapshots - 2.2.1 works well).
Comment 5 Wang Zhenyu 2008-12-10 18:15:33 UTC
Does this problem still happen with recent releases?
Comment 6 Bernhard Rosenkraenzer 2008-12-11 01:50:26 UTC
Not sure - I don't have the machine anymore, the one I upgraded to has a newer chipset (GM47) on which I never had the problem.
Comment 7 Michael Fu 2008-12-28 21:55:44 UTC
we can't reproduce this. No way to track this bug down now with the machine gone. Wild guess would be a dup of those ring dead bugs...

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