*** This bug is a duplicate of bug 126140 ***
https://bugs.launchpad.net/bugs/126140
I confirm the bug!
Hardware: P4 @ MSI Neo2 Platinum (Intel 915P) Mobo
Sound: Onboard CMI 9880 chip.
Unloading snd-hda-intel module prior to shutdown makes power off
possible. :)
--
Ubuntu hangs at shutdown (snd-hda-intel)
https://bugs.launchpad.net/bugs/201813
You received this bug notification because you are a member of Ubuntu
EEEPC, which is a direct subscriber (via bug 126140).
Status in Ubuntu: New
Bug description:
PROBLEM:
Ubuntu 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.
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