segfault/lockup while playing a video after upgrade 8.04->8.10

I installed ubuntu-desktop and movies work fine from Gnome with the same players. It's probably a KDE specific problem.

I have the same problem on a Gateway MX6028 (same video card).

Some more details:
- Video runs fine if nothing else happens on the screen;
- As soon as I e.g. change the volume (press volume +/-, which is a shortcut to kmix), switch to Firefox or Thunderbird, etc., the segfault is generated and ttys are not available anymore.

After the segfault, X tries to restart and it generates a new segfault every time. The only way to stop it is to press ctrl-alt-del and reboot (in other words, the keyboard seems to be still answering).

This problem appeared after my upgrade to 8.10 (kubuntu). Before this, I was running KDE4 on 8.04.

I produced this problem on an upgraded partition and on a newly formatted partition.

New update: I've been running VLC with OpenGL rendering since a couple of weeks and it didn't crash a single time.

[This is an automated message]

Hi kosta-pribic,

Please attach the output of `lspci -vvnn` too.

[This is an automatic notice.]

We'd like to forward your bug upstream, however upstream requires
that you first test it against their newer driver code.

To save you the effort of building the driver from source, we've built
packages for the driver and its new dependencies.

So you have a couple options:

 1. Download and test .debs for intrepid, from:
     https://edge.launchpad.net/~intel-gfx-testing/+archive

 -or-

 2. Download and test the Jaunty alpha-2 (or newer) Live CD,
     (which includes a beta of the new xserver 1.6 as well).
     See http://cdimage.ubuntu.com/releases/9.04/ for ISOs

Thanks ahead of time! You can simply reply to this email to report your
findings.

P.S., if you wish to forward your bug upstream yourself, please follow
these directions to do so:
  http://intellinuxgraphics.org/how_to_report_bug.html

My lspci -vvnn.

As for the Jaunty alpha-2, ill download the Kubuntu version ISO and try with that.

I had the same problem as described here. Using xserver-xorg-video-intel - 2:2.5.1-1ubuntu5~intrepid from https://edge.launchpad.net/~intel-gfx-testing/+archive as Bryce Harrington recommended to test solved the problem.

I also tried the older version 2.4.3, but the problem persists there. Maybe I'll have time to pin down exactly when the fix was introduced after Christmas.

Ehm, sorry. Apparantly I didn't have time to test properly. The problem REMAINS with 2.5.1.

I also tried with the Jaunty alpha 2 livecd, but graphics was completely garbled and behaving very weirdly, so I never go as far as actually testing video playback.

Also, the error messages are somewhat different with 2.5.1. In my Xorg log:

(EE) intel(0): underrun on pipe B!
(EE) intel(0): underrun on pipe B!
(EE) intel(0): underrun on pipe B!
[Repeated many many times]

From dmesg the only thing I can see is

[ 7860.106513] [drm:i915_getparam] *ERROR* Unknown parameter 5

i.e. no segfault as for 2.4, apparently.

Thanks for testing gspr. Sounds like the issue still exists, but since Kosta is the original reporter, we'll await his testing results first.

Btw, "underrun on pipe B" is a generic warning, that can be caused by a wide variety of different problems, but it is a useful piece of data. It just means that for whatever reason, insufficient data was getting through to your display attached to the B pipe.

Just for the record: I also heard someone suggest the problem could be in libdrm, so two days ago I tried the latest git version of it, but still no luck.

Also: I tried the latest git version of the driver itself aswell, but it behaves just the same.

Sorry for the delay, I've downloaded Kubuntu Jaunty Alpha 2 LiveCD and it works fine now. Tested with VLC, mplayer and Dragon Player. Video looks fine, logs say nothing and no garbled GUI graphics either.

As far as my laptop is concerned that would be it. Thanks!

Greetings,

I found this thread while trying to find a solution to the problem I am having with my laptop, which is identical to the one originally reported by Kosta. I added the ppa listed above, and did an apt-get of xserver-xorg-video-intel, but I still continue to have the same problem. I also did an apt-get of libdrm2
and libdrm-intel1.

Anything else I needed to do other that the apt-get and rebooting? The output of lspci -vvnn is attached.

Thanks,

Jaime

P.S. My problems with video playback started when I upgraded from ubuntu8.04 to 8.10.

Xorg.log is attached.

I download the Jaunty CD and ubuntu-desktop overnight to see if it is a KDE or intrepid specific problem.

Thanks again,

Jaime

Hello again,

I have seen additional evidence for the error being KDE specific. After installing ubuntu-desktop and logging into gnome, videos played back without a problem. Upgrading to the recently released kde 4.2 has solved the problem for me. Before that, I believe I was using kde 4.1.2, since I believe that's the kubuntu 8.10 default. Not sure if upgrading to kde 4.1.4 would have solved the problem.

So, I suspect what solved the problem for Kosta after upgrading to Jaunty was the newer version of KDE, as opposed to anything regarding xorg. That's just my guess, though.

I think kde 4.2 will only be "official" for jaunty. To install 4.2 under 8.10, I added repository kubuntu-experimental

Problem solved for me,

Jaime

Video playback now works fine for me aswell (in KDE) with the Jaunty alpha 4 livecd. Of course, I had to enable UXA to work around bug #304871, and that brings with it its own set of problems, but I guess that's another story.

Thanks everyone