From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Sander Wichers" Subject: High pitch noise produced when ACPI processor module loaded Date: Fri, 26 Sep 2003 09:59:47 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <001001c38404$27b959a0$2001a8c0@silverstone> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi, My inspiron 8600 (intel centrino/855PM) is producing a strange high pitch sound which comes from within the machine (definitly not the speakers) when the acpi processor module get's loaded. When I unload the processor module the high pitch sound goes away. Luckily I'm not the only with a dell inspiron having this problem. So far I've seen bug reports from people with an inspiron 8x00 / and lattitude C840 / C600 series: http://www.ussg.iu.edu/hypermail/linux/kernel/0307.1/index.html#2247 http://www.ussg.iu.edu/hypermail/linux/kernel/0305.1/index.html#628 The workarounds displayed in the links above don't do anything with the real problem.... I've tried to turn of frequency scaling, this doesn't influence anything. I also tried the apm workaround > no luck either. (apm isn't supported in my bios) This isn't normal behavior, is it? The noise is very annoying, it makes you not want to sit behind the machine! Is there a workaround for this? thanks, Sander ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf