Mailinglist Archive: opensuse-mobile-de (333 mails)

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Re: [suse-laptop] Problem mit SuSE 9.2 auf Thinkpad T22
  • From: Teemu Nikkilä <tnikkila@xxxxxxxxx>
  • Date: Wed, 12 Jan 2005 12:42:00 +0200
  • Message-id: <41E4FEF8.9020400@xxxxxxxxx>
Christian Zoz wrote:

Ich habe zwar keine Idee wo das herkommt oder was man dagegen
unternimmt. Ich kenne so ein ganz leises Fiepen auf mittelalten
Thinkpads (~T20/A20), das abhängig von der Last des Rechners ist. Ich
habe das damals als bauartbedingte Resonanzschwingung abgetan.


That was my first guess too, but now I dont't think it is a mechanical resonance for two reasons: 1) plugging in the headphones makes it go away and 2) (as far as I remember) it is different depending on if you use ACPI or APM. With ACPI there is noise when the system is idle, with APM when there is load. Could it be CPU frequency scaling, which doesn't work for me on 9.1 BTW?

-Teemu

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