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Date: Tue, 31 Aug 2010 09:38:53 +0200
From: Enrico Bandiello <enban@postal.uv.es>
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To: Kan-Ru Chen <ckanru@gmail.com>
CC: "Rafael J. Wysocki" <rjw@sisk.pl>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Kernel Testers List <kernel-testers@vger.kernel.org>,
        Maciej Rutecki <maciej.rutecki@gmail.com>,
        Enrico Bandiello <enban@alumni.uv.es>
Subject: Re: [Bug #16307] i915 in kernel 2.6.35-rc3, high number of wakeups
References: <c1_O4wHrlB.A.63.mbueMB@chimera> <ByD_7B96czP.A.kdD.pgueMB@chimera> <AANLkTi=bLAr=9E6-nfn8r_qGNfxYCXADoA0M9PzWHLmy@mail.gmail.com>
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On 08/31/2010 04:19 AM, Kan-Ru Chen wrote:

> Same with v2.6.36-rc3
>
> $ sudo powertop -d -t 20
> ...
> Wakeups-from-idle per second : 196.2    interval: 20.0s
> no ACPI power usage estimate available
> Top causes for wakeups:
>    25.4% ( 59.6)   [i915@pci:0000:00:02.0]<interrupt>

I can confir this behaviour until 2.6.32-rc2. Couldn't try with -rc3 
because compilation exited with error on my laptop...
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