Bug#320366: marked as done (system noise when using ACPI module processor)

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Bug#320366: marked as done (system noise when using ACPI module processor)

Debian Bug Tracking System
Your message dated Wed, 11 Jan 2006 13:16:35 +0100
with message-id <[hidden email]>
and subject line Closing all those bug reports, as they where erroneously labeled closed-in-NMU.
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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From: Erik Schanze <[hidden email]>
To: [hidden email]
Subject: system noise when using ACPI module processor
Date: Sat, 4 Dec 2004 17:22:06 +0100
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Package: kernel-source-2.6.8
Severity: minor
Version: 2.6.8-10


There is a problem with ACPI module "processor" in recent 2.6er kernels.
After loading this module my pentium-m notebook (ACER TM291) makes a very=20
high-pitched sound (not the fan) on idle. It sounds like an old CRT monitor
shortly before its end. :-)=20

It's caused by a change in include/asm-i386/param.h, where HZ was set=20
from 100 to 1000.

I have already send my notebook back to the vendor for repair the=20
"singing capacitor" on the mainboard, but I got it back unrepaired.=20
They could not reproduce this behavoiur under Windows. :-(
This uses a 100Hz timer, so I have no chance of repair.

Google tells, it is a known problem which was previously discussed at Kernel
Bug Tracker.=20

But the patch for "#define HZ" was rejected.
Since I'm not sure that the found solution (disabling of C3) is the best=20
solution and this patch will be included in 2.6.10, I'd like to ask you=20
for a Debian patch to switch back to HZ=3D100.=20

Please consider to add attached patch.

I like the distribution kernel very much (together with m-a) and it would
be a pity to have to build my own kernel caused by this issue.

Kindly regards,


 www.ErikSchanze.de *********************************************
 Bitte keine HTML-E-Mails! No HTML mails, please! Limit: 100 kB *

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=2D-- linux-2.6.7/include/asm-i386/param.h 2004-06-17 09:34:28.000000000 +0=
+++ linux-2.6.7-new/include/asm-i386/param.h 2004-07-19 13:30:54.207125536 =
@@ -2,7 +2,7 @@
 #define _ASMi386_PARAM_H
 #ifdef __KERNEL__
=2D# define HZ 1000 /* Internal kernel timer frequency */
+# define HZ 100 /* Internal kernel timer frequency */
 # define USER_HZ 100 /* .. some user interfaces are in "ticks" */
 # define CLOCKS_PER_SEC (USER_HZ) /* like times() */

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Received: (at 320366-done) by bugs.debian.org; 11 Jan 2006 12:18:37 +0000
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Date: Wed, 11 Jan 2006 13:16:35 +0100
To: [hidden email], [hidden email],
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Subject: Closing all those bug reports, as they where erroneously labeled closed-in-NMU.
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As subject says.


Sven Luther

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