Computer hangs after logging out when using nVidia driver version 173

[Ricardo Pérez López]

Binary package hint: indicator-session

Steps to reproduce:

1. Login into a user 'first'.
2. Select Indicator session icon -> 'second' user.
3. GDM asks you the 'second' account password.
4. Type the password to log into 'second' account.
5. Select Indicator session icon -> Logout.
6. Confirm in the confirmation dialog.
7. Screen goes black and computer hangs (or it seems to be hang).

[Ricardo Pérez López (ricardo)]

The bug is fully reproducible regardless what specific screensaver is active.

[Ricardo Pérez López (ricardo)]

Looking into /var/log/messages, I can see the following kernel messages just exactly when the computer hangs:

Apr 1 14:17:55 kadath kernel: [ 4001.898940] __ratelimit: 3 callbacks suppressed
Apr 1 14:17:55 kadath kernel: [ 4001.898947] python[4115]: segfault at 0 ip (null) sp bfa82a4c error 4 in libc-2.11.1.so[11
0000+153000]

[Ricardo Pérez López (ricardo)]

Problem fixed using nvidia driver version 195, so the problem could be only reproduced using nvidia driver version 173.

[khink (kees-fmf)]

Thanks, installing a newer nVidia driver worked for me!

[Vish (vish)]

Ricardo, Any reason you filed the bug in indicator-session? Indicator-session is just an applet which offers the session options.

The hang seems Nvidia graphics driver related as you mention.

[Ricardo Pérez López (ricardo)]

Yes, you're right. My fault. I'll change it. Thank you very much!

[Launchpad Janitor (janitor)]

[Expired for nvidia-graphics-drivers-173 (Ubuntu) because there has been no activity for 60 days.]