X crashes more and more often

[francois]

Kubuntu 14.04 Trusty - Nvidia driver - used to work very well, now regularly crashes while browsing with Firefox.

libpthread.so.0 -> libc.so.6 -> Segmentation fault -> Signal 11 -> X dies, back to login

[ 1650.853] (EE)
[ 1650.853] (EE) Backtrace:
[ 1650.881] (EE) 0: /usr/bin/X (xorg_backtrace+0x48) [0x7fbb4b732848]
[ 1650.881] (EE) 1: /usr/bin/X (0x7fbb4b589000+0x1ad539) [0x7fbb4b736539]
[ 1650.881] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fbb4a685000+0x10340) [0x7fbb4a695340]
[ 1650.881] (EE) 3: /usr/bin/X (0x7fbb4b589000+0x107f8f) [0x7fbb4b690f8f]
[ 1650.881] (EE) 4: /usr/bin/X (_CallCallbacks+0x34) [0x7fbb4b5e4054]
[ 1650.881] (EE) 5: /usr/bin/X (XaceHook+0xe4) [0x7fbb4b68b764]
[ 1650.881] (EE) 6: /usr/bin/X (dixLookupResourceByType+0x113) [0x7fbb4b602693]
[ 1650.881] (EE) 7: /usr/bin/X (0x7fbb4b589000+0x128fb2) [0x7fbb4b6b1fb2]
[ 1650.881] (EE) 8: /usr/bin/X (0x7fbb4b589000+0x55f0e) [0x7fbb4b5def0e]
[ 1650.881] (EE) 9: /usr/bin/X (0x7fbb4b589000+0x59d9a) [0x7fbb4b5e2d9a]
[ 1650.881] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7fbb490c3ec5]
[ 1650.881] (EE) 11: /usr/bin/X (0x7fbb4b589000+0x451ee) [0x7fbb4b5ce1ee]
[ 1650.881] (EE)
[ 1650.881] (EE) Segmentation fault at address 0x27300000001
[ 1650.881] (EE)
Fatal server error:
[ 1650.881] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 1650.881] (EE)

[penalvch (penalvch)]

francois, thank you for reporting this and helping make Ubuntu better.

Could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg 1505272

Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[francois (fxbi)]

Hello Christophe,

Thank you for your assistance.

I installed the package xdiagnose, and run the command above in normal then in sudo mode, here is the output:

fran@franux:~$ apport-collect -p xorg 1505272
ERROR: Could not import module, is a package upgrade in progress? Error: No module named PyKDE4.kdecore
fran@franux:~$
fran@franux:~$ sudo apport-collect -p xorg 1505272
ERROR: Could not import module, is a package upgrade in progress? Error: No module named PyKDE4.kdecore

[penalvch (penalvch)]

francois, please execute the command while booted into http://cdimage.ubuntu.com/daily-live/current/ .

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]