I've installed Linux Mint 13 (Maya) Ubuntu 12.04 based on 6 PCs for
educational purpose.
Shutdown via GUI does not work at all. The PCs remain powered on, but no
input is possible....
I tried to turn them off on a console but only one manages to power off after
:~$ sudo shutdown -h now:~$
but not always...
The others show the line
[876.9876] Power down.
forever until i turn them off manually....
After googling around I've found the kernel parameters
noapic nolapic acpi=off
...but it didn't change the problem really, sometimes it worked, sometimes
not...
Then I read the posting from
plum7500 (plum01) wrote on 2012-06-13:
and i tried:
:~$ sudo su -
:~# shutdown -h now
I use kernel 3.2.023
The PCs have nvidia cards...could this be the problem?
I tried to switch from "nvidia current" to "nvidia current-updates" on one PC:
After restart i tried to turn off via GUI and it did not power down...
I tried again as root on the console, the PC had noapic and nolapic options as
kernel parameters:
Ctrl-Alt-F1 => console
loggedin as user
:~$ sudo su -
:~# shutdown -h now
...and it did shutdown....
All PCs used to power off since Ubuntu 8.04 ....what can I do? BIOS ACPI
settings?
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https://bugs.launchpad.net/bugs/987220
Title:
System does not power off reliably when "Shut Down" chosen from GUI
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