From: Thomas Breitner <mail@tombreit.de>
To: linux@dominikbrodowski.de
Cc: cpufreq@www.linux.org.uk
Subject: Re: little system-hang when switching frequencies
Date: Thu, 10 Jun 2004 18:58:22 +0200 [thread overview]
Message-ID: <1086886702.5951.11.camel@localhost> (raw)
In-Reply-To: <20040610081337.GA7723@dominikbrodowski.de>
Am Do, den 10.06.2004 schrieb Dominik Brodowski um 10:13:
> On Wed, Jun 09, 2004 at 11:26:47PM +0200, Thomas Breitner wrote:
> > i don't understand the meaning of result "0", but it seems that the
> > system needs *only* one - the first - try to switch from low to high
> > frequency - but it needs always 6 retries to switch back.
>
> Result "0" means there's no postive or negative return value in =D; but the
> "state" (=b) [ebx?] is still at the old state...
>
> > but: switching frequencies under the preinstalled win xp works "in both
> > directions". how is this possible when it's the bios which is causing
> > the "little system hang"?
>
> Hm, have you tried the ACPI P-States cpufreq driver?
what great idea! it works out of the box! just a little tunig of
cpufrqd.conf.
i can now use the two P-states of my p-IIIm (Inspiron 8100):
---
Jun 10 18:48:37 localhost kernel: cpufreq: CPU0 - ACPI performance
management activated.
Jun 10 18:48:37 localhost kernel: cpufreq: P0: 1000 MHz, 15800 mW, 500
uS
Jun 10 18:48:37 localhost kernel: cpufreq: *P1: 733 MHz, 12500 mW, 500
uS
---
and what's best: i have no "little system hangs when switching
frequencies" anymore!
thanks a lot, if you don't have any notes i forward this that the
debian-cpufreqd-bug can be closed.
cheers,
thomas
> Also, it might be that
> win xp knows more about speedstep-smi than we do, as Intel didn't release
> any specification on speedstep-smi...
>
> Dominik
>
> _______________________________________________
> Cpufreq mailing list
> Cpufreq@www.linux.org.uk
> http://www.linux.org.uk/mailman/listinfo/cpufreq
--
______________________________________
thomas breitner
www.tombreit.de | mail@tombreit.de
next prev parent reply other threads:[~2004-06-10 16:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-08 18:00 little system-hang when switching frequencies Thomas Breitner
2004-06-09 15:59 ` Dominik Brodowski
2004-06-09 21:26 ` Thomas Breitner
2004-06-10 8:13 ` Dominik Brodowski
2004-06-10 16:58 ` Thomas Breitner [this message]
2004-06-10 9:08 ` Bruno Ducrot
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