Bug 11690 - i915: DRI makes XVideo slow
Summary: i915: DRI makes XVideo slow
Status: RESOLVED WORKSFORME
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: 7.2 (2007.02)
Hardware: Other All
: medium normal
Assignee: Eric Anholt
QA Contact: Xorg Project Team
URL: http://bugs.gentoo.org/show_bug.cgi?i...
Whiteboard:
Keywords:
Depends on:
Blocks: 13027
  Show dependency tree / graph
 
Reported: 2007-07-22 16:29 UTC by Martin von Gagern
Modified: 2007-12-03 22:21 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
xorg.conf (4.61 KB, text/plain)
2007-07-23 08:32 UTC, Martin von Gagern 		no flags Details
Xorg.log (85.70 KB, text/plain)
2007-07-23 08:34 UTC, Martin von Gagern 		no flags Details
View All

Description Martin von Gagern 2007-07-22 16:29:37 UTC 
I have an Intel i915 chip on my motherboard. When I use an current intel (i810) driver with version 2.0.0 or 2.1.0, then applications displaying video using XVideo become extremely slow, displaying only a few frames per second. This can be resolved by either disabling DRI or downgrading to driver version 1.7.4.

I first reported this as a Gentoo bug: http://bugs.gentoo.org/177420
Comment 1 Erik Andren 2007-07-23 04:45:35 UTC 
Please post (not pasting) your xorg.conf and your xorg.log
Comment 2 Martin von Gagern 2007-07-23 08:32:11 UTC 
Created attachment 10841 [details]
xorg.conf
Comment 3 Martin von Gagern 2007-07-23 08:34:15 UTC 
Created attachment 10842 [details]
Xorg.log
Comment 4 Martin von Gagern 2007-09-27 01:35:27 UTC 
Still an issue with driver 2.1.1. This is the same machine on which I experience bug 12542, so maybe they are related even when I see no connection.
Comment 5 Jesse Barnes 2007-10-31 14:36:24 UTC 
This may actually be a kernel DRM bug.  Can you try a recent kernel and Mesa release?
Comment 6 Antti Mäkelä 2007-11-02 06:59:27 UTC 
I remember having same kinds of symptoms - I remember fixing *some* issue by switching to EXA. So try putting AccelMethod EXA to your xorg.conf and check if it helps.

Just a thought.
Comment 7 Michael Fu 2007-11-05 17:11:33 UTC 
Martin, we resolved several Xvideo related bugs.e.g. bug# 12243, bug# 11186, etc. please re-test with the git tip to see if it resolved your issue. Also, Antti suggested in comment# 6 is also very true. Please use EXA. thanks.
Comment 8 Gordon Jin 2007-12-03 22:21:44 UTC 
I'm closing. Please reopen if you still see this problem in the latest driver (2.2 release or git) which has turned EXA on by default.

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