Public bug reported:

I just upgraded my Jaunty machine running Linux 2.6.28-16-generic to
Karmic running Linux 2.6.31-14-generic, and noticed that KDE crashes
back to the KDM login screen during startup. I can run Fluxbox just
fine, and KDE works if I boot into Linux 2.6.28-16-generic. I can also
startx remotely over Xephyr/SSH. Locally, however, I get the following
error in kdm.log (and output during startx):

=====[ CUT ]=====
X.Org X Server 1.6.4
Release Date: 2009-9-27
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-23-server i686 Ubuntu
Current Operating System: Linux phoenix 2.6.31-14-generic #48-Ubuntu SMP Fri 
Oct 16 14:04:26 UTC 2009 i686
Kernel command line: root=UUID=c29b60cc-e6ef-450c-b3c5-ea761c6e3416 ro  single
Build Date: 26 October 2009  05:15:02PM
xorg-server 2:1.6.4-2ubuntu4 (buildd@)
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Nov  2 14:39:52 2009
(==) Using config file: "/etc/X11/xorg.conf"
Fulfilled via DRI at 20976640
Freed 20976640 (pool 2)
X: main/renderbuffer.c:2159: _mesa_reference_renderbuffer: Assertion 
`oldRb->Magic == 0xaabbccdd' failed.
xinit:  connection to X server lost.
=====[ CUT ]=====

I'm using a VIA Technologies, Inc. K8M800/K8N800/K8N800A [S3 UniChrome
Pro] (rev 01) video chipset with the xserver-xorg-video-openchrome
driver, and the crash occurs whether I use an xorg.conf or not. The
xorg.conf, if used, is

=====[ CUT ]=====
Section "Device"
        Identifier      "Configured Video Device"
        Option          "UseFBDev"      "true"
EndSection

Section "Monitor"
        Identifier      "Configured Monitor"
        Option          "DPMS"
        HorizSync       31.5-65.2       # 31.5-37.9
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Monitor         "Configured Monitor"
        Device          "Configured Video Device"
        DefaultDepth    24
        SubSection "Display"
                Depth    24
                Modes    "1280x1024"
        EndSubSection
EndSection
=====[ CUT ]=====

I'd appreciate any help with this matter, and advice about other
information that I should provide. Thanks!

ProblemType: Bug
Architecture: i386
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', 
'/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', 
'/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0p', '/dev/snd/seq', 
'/dev/snd/timer', '/dev/sequencer', '/dev/sequencer2'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'V8237'/'VIA 8237 with ALC655 at 0xd400, irq 22'
   Mixer name   : 'Realtek ALC655 rev 0'
   Components   : 'AC97a:414c4760'
   Controls      : 48
   Simple ctrls  : 29
Date: Mon Nov  2 15:29:22 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=f4ed7091-30d8-4c93-9e4b-e7ae7eb77d34
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic 
root=UUID=c29b60cc-e6ef-450c-b3c5-ea761c6e3416 ro quiet splash
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
RfKill:
 
SourcePackage: linux
Uname: Linux 2.6.31-14-generic i686
WpaSupplicantLog:
 
XsessionErrors:
 (process:3009): Gtk-CRITICAL **: gtk_clipboard_get_for_display: assertion 
`display != NULL' failed
 (<unknown>:3009): Gdk-CRITICAL **: gdk_window_get_origin: assertion 
`GDK_IS_WINDOW (window)' failed
dmi.bios.date: 12/29/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: K8M800-8237
dmi.chassis.type: 3
dmi.modalias: 
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/29/2006:svn:pn:pvr:rvn:rnK8M800-8237:rvr:cvn:ct3:cvr:

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
with kernel 2.6.31-14-generic my X server crashes during KDE 4.3.2 startup
https://bugs.launchpad.net/bugs/471646
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