[i965] system freeze shortly after using fast user switch

[Sam Mason]

Binary package hint: xserver-xorg-video-intel

Shortly after switching users (i.e. somewhere between 5 seconds to a minute) after switching users the system locks solid. Display is still visible but nothing works, mouse doesn't move numlock doesn't change, etc. First display is accelerated GL fancyness, but the second one doesn't get any acceleration. Symptoms seem like the first display leaving the graphics card in an inappropriate state, or touching it later on hence associating the bug with the driver.

I've had a good search through similar reports but failed to find anything the same. Lots similar with binary video drivers, but this is using the "latest" intel driver so I'd expect it to be OK.

Thanks!

  Sam

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
Package: xserver-xorg-video-intel 2:2.6.1-1ubuntu2
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcVersion: Linux version 2.6.28-8-generic (buildd@yellow) (gcc version 4.3.3 (Ubuntu 4.3.3-3ubuntu5) ) #22-Ubuntu SMP Fri Feb 13 21:39:24 UTC 2009

SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.28-8-generic x86_64

[lspci]
00:00.0 Host bridge [0600]: Intel Corporation 82P965/G965 Memory Controller Hub [8086:29a0] (rev 02)
 Subsystem: ASUSTeK Computer Inc. Device [1043:81ea]
00:02.0 VGA compatible controller [0300]: Intel Corporation 82G965 Integrated Graphics Controller [8086:29a2] (rev 02)
 Subsystem: ASUSTeK Computer Inc. Device [1043:81ea]

[Bryce Harrington (bryce)]

We have a PPA with some new tools for debugging X freezes:

  https://launchpad.net/~ubuntu-x-swat/+archive/x-freeze-test

I know how irritating X freezes can be. They're also typically
quite hard to debug, but the information provided by these new
tools should help upstream figure them out.

You can help by doing the following:

 A. Install the PPA packages on Jaunty and boot kernel 2.6.30-rc2
 B. Reproduce your freeze
 C. ssh into the machine and run the steps to collect the info
 D. Attach the tarball of the results to this bug report

With this information, we'll be able to forward your bug upstream.

(For more information on triaging X freeze bugs, see
 https://wiki.ubuntu.com/X/Troubleshooting/Freeze )

[Hugo St-Germain (hugo-st-germain)]

Bryce,

I have very similar symptoms to what is reported in this bug (see https://bugs.launchpad.net/bugs/370343 for details).

My dri_debug tarball is attached.

Thanks,
Hugo

[Emilio (turl)]

I also experience this bug, even with the ubuntu-x-swat drivers.

xserver-xorg-video-intel:
  Installed: 2:2.7.0-1ubuntu1~xup~1

I will try to provide the information soon - I need to get other pc in which to use a ssh client.

[Bryce Harrington (bryce)]

Thanks Hugo,

Since you've posted your dri_debug.tgz, I'm going to make yours the master bug.