Public bug reported:
PROBLEM:
Gutsy Gibbon hangs at shutdown and doesn't power off.
REMARKS:
- At shutdown, the following message appears:
NetworkManager: <WARN> nm_hal_deinit(): libhal shutdown failed - connection is
closed
- Some suspicious messages from dmesg:
hda_codec: Unknown model for ALC880, trying auto-probe from BIOS...
hda_codec: Cannot set up configuration from BIOS. Using 3-stack mode...
apm: disabled - APM is not SMP safe.
- To use the command "sudo rmmod -w snd_hda_intel" solves the problem
and the computer power off. Furthermore, the network warning does not
appear. To use the switch "-f" does not unload the module.
- The system does not hibernate when using pidgin and, sometimes,
firefox and it never suspends.
CONCLUSION
There is no conclusion since the source of the problem is not clear. It
could be the sound driver, the network driver, the energy management or
whatever else. This bug has been largely reported and confirmed (since
6.06), but never solved, I don't know why.
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: gutsy hang poweroff shutdown
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Gutsy hangs at shutdown
https://bugs.launchpad.net/bugs/201813
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