[ltp] Re: help in troubleshooting ACPI drain with 2.6.10 please

[Volker Braun]

On Mon, 03 Jan 2005 16:21:42 +0100, Bob Alexander wrote:
> Sleep to RAM: excessive battery drain (approx. 9% per hour...

Looks like you found my bug, see

http://bugme.osdl.org/show_bug.cgi?id=3022

There is no known workaround, except using suspend to disk or going back
to APM. The most reasonable guess so far as to the cause is that the
radeon chip does not get powered down correctly. There is no supporting
evidence, though.

> (Related question: when I try a modprobe -r of a module and it refuses
> saying it's in use, how can I discover by what ?)

Well, how about lsmod?

> Module                  Size  Used by 
> thermal                13256  0
> processor              19564  1 thermal ac                      4740  0

See the "Used by" column? :-)

Best,
Volker