From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: Massive power regression going 3.4->3.5
Date: Wed, 01 Aug 2012 09:16:24 +0100
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Greg Kroah-Hartman <greg@kroah.com>, Ben Widawsky <ben@bwidawsk.net>, dri-devel@lists.freedesktop.org, linux-pm@vger.kernel.org
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On Wed, 01 Aug 2012 09:06:12 +0100, James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> I got the attached to apply and it doesn't really improve the idle power
> much (12.5W).

That's good to know. Next step is to try overriding i915.semaphores.
Can you please test with i915.semaphores=0 and i915.semaphores=1?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre