Jerky video/DVD playback since kernel update

Bug #52703 reported by Jens Berke
2
Affects Status Importance Assigned to Milestone
linux-source-2.6.15 (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

Binary package hint: linux-image-2.6.15-26-686

I have ubuntu 6.06 installed (no upgrade from Breezy). All packages are from the ubuntu repositories (and very few from PLF). No drivers compiled by myself. System: IBM Thinkpad R52 with an ATI Radeon Mobility M300

Updating from kernel 2.6.15-23 to 2.6.15-25 created a few problems, which still exist in 2.6.15-26:

* DVD and video playback is choppy / jerky (no matter which player I use). This makes the latest kernel useless for me and I've kept using 2.6.15-23 instead.
* Rhythmbox hangs very often when starting (while checking the music library)
* When you have an application starter on a panel and click it, there's this short little animation of an extending frame indicating that the application is started. This animation needs almost 2 seconds (instead of maybe a quarter of a second) to finish and is jerky as well. This is not anything serious but might be a hint for the cause of the problem.

Why I think the kernel update is the cause:
I had an image of my system in a good and working state, made before the update to 2.6.15-25. After discovering the problems I installed this image again. Then I updated linux-image-2.6.15-26 and linux-restricted-modules-2.6.15-26 only. After that, the problems were there again. So it must be in one these two packages. I'm using the -686 packages.

If you need more info please let me know.

Revision history for this message
Jens Berke (jensberke) wrote :

A little more info: I'm using the linux-686 meta package, that's why I had to update the linux-image and linux-restricted-modules packages at the same time.

Revision history for this message
mym (tuxmym) wrote :

Same problem here, with kernel 2.6.15-24/25/26
As soon as I switch to 2.6.15-23 at boot, everything is working well again.

* 2D/3D applications are really jerky
* video playback too

Ubuntu Dapper, laptop ACER Aspire 1694WLMI, Pentium M 2Ghz, 1Go DDR2, ATI X700 128Mo, last Ubuntu fglrx drivers.

Revision history for this message
Jens Berke (jensberke) wrote :

Seems like one of the latest (kernel?) updates solved the problem with video playback. It's working fine again now in 2.6.15-26. The problems with Rhythmbox and with the "short little animation of an extending frame", which I reported above, are solved as well.

What remains unfixed is 3D (Google Earth for example), which is not usable in 2.6.15-26 but works fine in 2.6.15-23. Is this maybe related to the "mesa issue" which is discussed at ubuntuforums.org?

Changed in linux-source-2.6.15:
status: Unconfirmed → Fix Released
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