Re: ACPI differences 4.10 - 5.3, laptop problem

John Baldwin wrote:
> On Tuesday 30 November 2004 04:21 am, Espen Tagestad wrote:
> 
>>Hi,
>>
>>I have run FreeBSD 4 on my laptop for a couple of years know, and as
>>ACPI was included in 4.9 (or was it 4.10) I was quite satisfied with the
>>situation. Now, I've upgraded to 5.3 on ACPI is no longer working. With
>>acpi enabled, the laptop starts but after 10-15 seconds it stops and
>>won't respond to anything. Currently it runs without ACPI with the
>>thermal coolers on full speed. It's irritating, and it'll probably eat
>>up the batteries much faster than running with ACPI.

I think, I observed a change in the ACPI behaviour, too: on my laptop a 
FreeBSD 5-CURRENT was installed for testing. Now, after 5 is stable, I 
want to change fully to FreeBSD. But after updating to 5-STABLE, I 
observe the fans continously running (but not at full speed) though air 
is cold, and the laptop does not switch the power off anymore, when I do 
a "shutdown -p now". Both worked under CURRENT.

> 
> 
> Just a note: ACPI in 4.x is mostly a joke (I know, I did the backport).  All

I never tried FBSD 4 on this laptop ...

> it really does is make sure the power button works as well as the timer and 
> maybe simple CPU throttling.  The thermal stuff might work (fan control, 
> etc.) but it's not guaranteed.  ACPI in 5.x is much more mature though it 
> seems to have a problem on your particular machine.  Can you boot a 5.x 
> kernel with ACPI enabled over a serial console to capture the dmesg to a log 
> and e-mail it back?
> 

If you want, I can support you with additional information too. It's a 
DELL Inspiron 8100 (I think DELL is special ;-)

Greetings from the Baltic Sea,

-- 

Karsten Rothemund,
Institut f. Allgemeine Elektrotechnik, Universitaet Rostock
Tel.: +49 (0)381 498 3649
E-Mail: [email protected]
(PGP- and GnuPG-Key available on my HomePage:
  http://www-ae.e-technik.uni-rostock.de/home/karo/)

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