From: Sebastian Fabrycki <cellsan@interia.pl>
To: linux-kernel@vger.kernel.org
Subject: Cpufreq without voltage/freq. tables in ACPI
Date: 13 Sep 2005 17:18:19 +0200 [thread overview]
Message-ID: <20050913151819.04AC83B7973@poczta.interia.pl> (raw)
Hi.
I have laptop with Pentium M Dothan (stepping B0) 1.6GHz. There are no voltage/freq. paris in ACPI available, so i can't use frequency scaling under Linux.
However i can press special button that raises CPU frequency from 600MHz to 1.6GHz. It's above keyboard, with ventilator sign.
So maybe it is possible to detect which version of Dothan B0 i have? There are AFAIK four versions using different voltage/freq. pairs VID#{A,B,C,D}.
I mean: detect which voltages are used after pressing ventilator button and then check which version of VID# it is.
Other case: where do they keep this information? This ventilator button works (almost: i can't switch back to 600MHz), so it must be stored somewhere..
PS. I'm not subscribed to the list, please Cc me.
--
Regards
Sebastian
----------------------------------------------------------------------
TOUR DE POLOGNE: oficjalny serwis >>> http://link.interia.pl/f18b5
reply other threads:[~2005-09-13 15:18 UTC|newest]
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