From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: 2.6.28 regression: xbacklight broken on ThinkPad X61s Date: Mon, 5 Jan 2009 11:05:56 +0000 Message-ID: <20090105110556.GA28245@srcf.ucam.org> References: <20090105083911.GA3694@x61> <1231146375.32473.52.camel@rzhang-dt> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:60931 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752052AbZAELGH (ORCPT ); Mon, 5 Jan 2009 06:06:07 -0500 Content-Disposition: inline In-Reply-To: <1231146375.32473.52.camel@rzhang-dt> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Zhang Rui Cc: Tino Keitel , "linux-kernel@vger.kernel.org" , "linux-acpi@vger.kernel.org" , trenn@suse.de, jbarnes@virtuousgeek.org On Mon, Jan 05, 2009 at 05:06:15PM +0800, Zhang Rui wrote: > hmm, this regression is caused by commit > 22c13f9d8179f4c9caecfcb60a95214562b9addc > > but the real problem is that the IGD OpRegion doesn't work well on this > laptop. I suspect that the issue is actually that the opregion code works fine but i915 interrupts are failing to work properly, which we've seen a couple of cases of. Jesse? -- Matthew Garrett | mjg59@srcf.ucam.org