Public bug reported:
Since upgrading to Ubuntu 10.10 (maverick) my PC won't power down
(sometimes: see below) after shutdown. The disk spins down but the PC
doesn't go to standby. The problem may be connected with the BIOS alarm-
clock feature that I'm using that also ("sometimes") doesn't work any
more - or maybe the cause/effect is reversed.
Background: I have the PC's BIOS alarm clock set to wake up the PC early
in the morning before I get to work to run some automatic jobs. When I
leave at night I shut down the PC manually. On weekends and when I'm not
in a cron job shuts down the PC. This was all working without problems
under Lucid.
Problem:
What happens under Maverick is this:
* I go into the BIOS settings and save them (F10 + Y) without changing anything.
* the PC boots
* on the next shutdown ("shutdown -h now") to PC shuts down and powers off to
standby mode correctly
* the next morning the BIOS alarm clock wakes up the PC correctly, and Ubuntu
boots
* on the next shutdown Ubuntu shuts itself down as far as I can tell. The disk
spins down anyway, and the red dots on the splash screen stop cycling.
* the next morning the BIOS fails to wake up the PC.
* as far as I have determined so far the PC stays in the "won't power
down/won't auto-start" state. It seems to do so when I shut down and start up
again during the day anyway.
My system is a fully updated Maverick for i386 (32-bit), The processor
is an Intel Core2 Duo CPU E8500 @ 3.16GHz. I don't know what the
mainboard is (PC supplied by IT dept). The BIOS is intel, according to
the splash screen.
Any ideas? It's a bit of a pain to have to reboot into the BIOS just
before I shut down every evening.
I suspect the bug might be in the kernel, but I'm not sure.
I've tried some acpi options on the kernel command line. acpi=force (no
effect), acpi=off (won't power off anyway, I think) acpi=strict (no effect).
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/781608
Title:
Maverick fails to power off PC after shutdown
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