looks like this was a duplicate of "bug #956071" bcs that fix fixed this
for me.
** Changed in: xorg-server (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1030491
Title:
Xorg segfault
Status in “xorg-server” package in Ubuntu:
Fix Released
Bug description:
Yesterday, while working, my KDE unexpectedly crashed (blank screen, login
screen shortly after).
There was no monitor switching, external plug events, resolution switching
etc. involved.
syslog:
Jul 28 15:27:48 birne kernel: [ 5470.658453] Xorg[1431]: segfault at
7ff200000069 ip 00007ff26276ed5b sp 00007fff7f6ca020 error 4 in
Xorg[7ff2626cf000+1f0000]
Xorg.log:
[ 5339.174] (**) Logitech USB Optical Mouse: (accel) acceleration threshold:
4
[ 5484.545]
Backtrace:
[ 5484.545] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7ff262857816]
[ 5484.545] 1: /usr/bin/X (0x7ff2626cf000+0x18c6ba) [0x7ff26285b6ba]
[ 5484.546] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7ff2619f5000+0xfcb0)
[0x7ff261a04cb0]
[ 5484.546] 3: /usr/lib/xorg/modules/input/synaptics_drv.so
(0x7ff25c337000+0x2678) [0x7ff25c339678]
[ 5484.546] 4: /usr/bin/X (BasicComputeAcceleration+0x7) [0x7ff26273a5d7]
[ 5484.546] 5: /usr/bin/X (0x7ff2626cf000+0x6bfe6) [0x7ff26273afe6]
[ 5484.546] 6: /usr/bin/X (0x7ff2626cf000+0x630b7) [0x7ff2627320b7]
[ 5484.546] 7: /usr/bin/X (GetPointerEvents+0xe2) [0x7ff262733302]
[ 5484.546] 8: /usr/bin/X (QueuePointerEvents+0x1d) [0x7ff26273375d]
[ 5484.546] 9: /usr/bin/X (xf86PostMotionEvent+0xd8) [0x7ff26276f0d8]
[ 5484.546] 10: /usr/lib/xorg/modules/input/synaptics_drv.so
(0x7ff25c337000+0x4118) [0x7ff25c33b118]
[ 5484.546] 11: /usr/lib/xorg/modules/input/synaptics_drv.so
(0x7ff25c337000+0x6180) [0x7ff25c33d180]
[ 5484.546] 12: /usr/bin/X (0x7ff2626cf000+0x8af07) [0x7ff262759f07]
[ 5484.546] 13: /usr/bin/X (0x7ff2626cf000+0xb0cfa) [0x7ff26277fcfa]
[ 5484.546] 14: /lib/x86_64-linux-gnu/libpthread.so.0
(0x7ff2619f5000+0xfcb0) [0x7ff261a04cb0]
[ 5484.546] 15: /lib/x86_64-linux-gnu/libc.so.6 (__select+0x13)
[0x7ff260954803]
[ 5484.546] 16: /usr/bin/X (WaitForSomething+0x19b) [0x7ff262854bfb]
[ 5484.546] 17: /usr/bin/X (0x7ff2626cf000+0x4e5f2) [0x7ff26271d5f2]
[ 5484.546] 18: /usr/bin/X (0x7ff2626cf000+0x3d7ba) [0x7ff26270c7ba]
[ 5484.546] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed)
[0x7ff26088a76d]
[ 5484.547] 20: /usr/bin/X (0x7ff2626cf000+0x3daad) [0x7ff26270caad]
[ 5484.547] Segmentation fault at address 0x7ff200000059
[ 5484.547]
Caught signal 11 (Segmentation fault). Server aborting
[ 5484.547]
This was the first time that happened, after running Ubuntu on this
machine for several months (first 11.10, now 12.04 since about 1
month).
The device is a Thinkpad T410s.
Please tell me which additional info is needed.
---
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
DistroCodename: precise
DistroRelease: Ubuntu 12.04
DistroVariant: ubuntu
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
Package: xorg 1:7.6+12ubuntu1
PackageArchitecture: amd64
ProcEnviron:
LANGUAGE=de_AT:de
TERM=xterm
LANG=de_AT.UTF-8
LC_MESSAGES=POSIX
SHELL=/bin/bash
Tags: precise ubuntu
Uname: Linux 3.3.0-030300rc7-generic x86_64
UnreportableReason: Please work this issue through technical support channels
first.
UpgradeStatus: Upgraded to precise on 2012-05-17 (72 days ago)
UserGroups:
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