Re: Any debian 2.6.x kernel ACPI success stories?
>>>>> "Broughton, Derek" <BroughtonD@mar.dfo-mpo.gc.ca>:
> Steinar Bang wrote:
> ... If you don't think it matters, turn it off.
I did (see another message). And, as I expected, it didn't make any
difference. What _would_ make a difference, would be to have both
apmd and acpid running at the same time. The two are not compatible
(at least not with a BIOS that support both).
> "Dell" bioses definitely do support APM.
Sorry, I was imprecise. I meant to say "Dell BIOSES past a certain
release number (which I can't remember, but it was first released
sometime last summer) do no longer support APM".
> Perhaps not yours, but I know people who have refused to upgrade to
> ACPI bioses because APM works very well for them.
If I could, I would have done the same. APM always worked well for me
in the past. However my D600 was bought in March this year, and I
weren't given any choice in the matter...:-/
>> What log do ACPI events usually go in? Should I expect to find events
>> for the stuff that work, such as fan, and shutdown?
> ACPI events are logged wherever you have them configured. Mine are,
> indeed, all in /var/log/acpid (acpid must configure that itself,
> because I used to get them in syslog). You should have events for
> every time you plug in the AC and remove it, and for every time you
> open and close the lid. Those are easy to check.
Yup, I get events for lid, AC plug out and plug in, battery (on and
off, presumably), and "processor" (change of speed when plugging out
and in).
Thanx!
> You won't see an event for "shutdown", but you should see power
> button events.
Check for both of them.
> However, I don't know about you, but with a stock acpid I can't
> actually use the power button to wake my system with acpid running -
> it immediately goes into shutdown mode.
It looks like I'm able to wake it from S3 suspend with a short press
on the powerbutton. I think the reason I'm not seeing anything, is
that the display doesn't come back on.
When it's running, one press on the powerbutton takes it into a
shutdown. A fairly tidy one. I preserves the KDE session.
A long (more than 4 second) press on the powerbutton, always switches
the machine off. I've been told that that's standard BIOS behaviour,
and it certainly beats unplugging the battery pack.
> I thought it had something to do with the values in
> /sys/power/state,
That's pmdisk, which at least one person on the acpi mailing list,
wants to die, die, die, as I've understood.
There's a pretty good explanation of the three software suspend
systems in linux (swsusp/acpi, pmdisk, and swsusp2), on this list:
http://swsusp.sourceforge.net/features.html
> but I know that "echo 1 >/proc/acpi/sleep" works on my Dell.
> Haven't got anything else working, yet.
I haven't tried that one recently. How much power do you save?
I sort of thought only s3 and s4 where worthwhile?
I'll try it tonight and see what happens.
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