I can confirm bug. There is still no fixes. In my case active user
session crashed every 5-6-th login (PC has 2 users) after entering
passwords with this:
kernel: [213870.238364] compiz[2577]: segfault at 0 ip 7f6f2adb1530
sp 7fff39517d40 error 6 in libnvidia-
Closing assumed fixed.
** Changed in: lightdm (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/874200
Title:
segfault when switching
I wonder if this is relevant:
http://www.nvnews.net/vbulletin/showthread.php?t=168598 ? I think the
segfault might also happen in nvidia-settings when I change the
resolution / screen offsets.
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When I switched to gdm from lightdm, the issue still seemed to happen. I
see the segfault when switching users (and I think to tty1 and then
back)
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I don't care about segfaults anymore. That bugs me is that lightdm
hangs after resuming from suspend, so I have to restart it every time
manually.
** Changed in: lightdm (Ubuntu)
Status: Incomplete = New
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I confirm that the routine update of my linux kernel has fixed this bug
for me.
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Title:
segfault when switching user
Status in
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lightdm (Ubuntu)
Status: New = Confirmed
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After a routine update of my linux kernel to the generic 3.0.0-13, this
bug has gone for my part. User switching works fine as I was used to in
Natty. Whatever happened, my computers work well again.
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My lightgdm.log. Still hangs when I try to switch user after suspend.
However, `dmesg` doesn't contain lightgdm segfaults.
-- cut dmesg --
...
[ 2391.853754] show_signal_msg: 45 callbacks suppressed
[ 2391.853760] compiz[1659]: segfault at 0 ip b69074f7 sp bfc67c30 error 6 in
Found segfault from lightdm earlier in kern.log
...
[ 9708.067796] PM: resume of devices complete after 833.337 msecs
[ 9708.067989] PM: resume devices took 0.832 seconds
[ 9708.068022] PM: Finishing wakeup.
[ 9708.068024] Restarting tasks ...
...
[ 9738.905189] show_signal_msg: 36 callbacks
Switched to gdm with:
$ sudo dpkg-reconfigure gdm
Now switched back:
$ sudo dpkg-reconfigure gdm
Please be sure to run dpkg --configure lightdm.
$ sudo dpkg --configure lightgdm
dpkg: warning: there's no installed package matching lightgdm
I'll report back if bug appears one again.
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Chaps,
I experience the same bug. In GUI mode, switching users causes lightdm to crash
exactly the way anatoly techtonic described this.
Falling back to gdm can not be a solution, lightdm is really nice!
I have 64-bit standard oneiric installation (generic kernel 3.0.0-12) on
a laptop (HP 625,
thanks, rktesser I'm not sure the original bug is the same as yours bug
your issue is bug #829221 and has to do with samba credential, you
should subscribe to that bug, there is a patch to test there as well
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** Attachment added: lightdm backtrace
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/874200/+attachment/2559116/+files/gdb-lightdm.txt
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Thank you for taking the time to report this bug and helping to make
Ubuntu better. Please try to obtain a backtrace following the
instructions at http://wiki.ubuntu.com/DebuggingProgramCrash and upload
the backtrace (as an attachment) to the bug report. This will greatly
help us in tracking down
I do reproduce the bug too with a migrated Ubuntu from 11.04 (not a
fresh install).
A workaround is to switch back to gdm using the command :
sudo dpkg-reconfigure gdm
Back to gdm all is fine so it's definitely a lightgdm bug.
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Title:
segfault when switching user
Status in “lightdm” package in Ubuntu:
New
Bug description:
When switching to another
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lightdm (Ubuntu)
Status: New = Confirmed
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