From: Fraz <fraz@unimail.com.au>
To: linux-kernel@vger.kernel.org
Subject: High pitched noise from laptop: processor.c in linux 2.6
Date: Thu, 07 Oct 2004 19:30:23 +1000 [thread overview]
Message-ID: <41650CAF.1040901@unimail.com.au> (raw)
I recently upgraded from linux 2.4.27 to 2.6.8.1 and noticed my laptop
now makes a high pitch noise while idle. I traced it back to the
processor module for acpi. 'rmmod processor' stops the noise.
Using speed step to turn it down to 733 Mhz makes it a
little quieter and doesn't change the tone.
Is there any way to stop this? I googled around and found it had
something to do with idle frequency of 1000 Hz in 2.6 instead of 100Hz
in the 2.4 kernel. I couldn't find much else on this. Hunting around the
code didn't help much, I don't know C.
The laptop is a Compaq Evo N160 from Dec 2001. The reference in google
was to a Centrino laptop with the same problem. I wrote to Dominik
Brodowski who suggested posting here.
fraz
next reply other threads:[~2004-10-07 9:32 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-07 9:30 Fraz [this message]
2004-10-07 10:32 ` High pitched noise from laptop: processor.c in linux 2.6 Pavel Machek
2004-10-07 10:53 ` Måns Rullgård
2004-10-07 14:32 ` Pavel Machek
2004-10-16 19:52 ` Lee Revell
2004-10-16 21:46 ` Alan Cox
2004-10-17 1:24 ` Lee Revell
2004-10-17 1:50 ` Kyle Moffett
2004-10-17 2:21 ` Alan Cox
2004-10-17 3:33 ` Lee Revell
2004-10-22 11:40 ` Alexandre Oliva
2004-10-16 19:59 ` Måns Rullgård
2004-10-16 20:42 ` Pavel Machek
2004-10-07 14:34 ` Pavel Machek
2004-10-17 0:45 ` Alex Riesen
2004-10-07 10:37 ` Christian Hesse
-- strict thread matches above, loose matches on Subject: below --
2004-10-17 5:21 Albert Cahalan
2004-10-18 3:51 Yu, Luming
2004-10-18 11:41 ` Pavel Machek
2004-10-20 14:47 ` Måns Rullgård
2004-10-20 15:47 ` Pavel Machek
2004-10-20 16:37 ` Måns Rullgård
2004-10-20 16:49 ` Jan-Benedict Glaw
2004-10-20 16:53 ` Pavel Machek
2004-10-20 16:53 ` Lee Revell
2004-10-20 17:13 ` Måns Rullgård
2004-10-21 20:32 ` Lee Revell
2004-10-21 21:39 ` Jon Masters
2004-10-20 23:31 ` Giuseppe Bilotta
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=41650CAF.1040901@unimail.com.au \
--to=fraz@unimail.com.au \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.