Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755300Ab2EWGsq (ORCPT ); Wed, 23 May 2012 02:48:46 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:37359 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751816Ab2EWGso (ORCPT ); Wed, 23 May 2012 02:48:44 -0400 Date: Wed, 23 May 2012 08:49:41 +0200 From: Daniel Vetter To: Sean Paul Cc: Zdenek Kabelac , Linux Kernel Mailing List , intel-gfx@lists.freedesktop.org, daniel@ffwll.ch, jbarnes@virtuousgeek.org Subject: Re: Regression on GMA965 - display seems to have slow jump changes in brightness Message-ID: <20120523064941.GA5062@phenom.ffwll.local> Mail-Followup-To: Sean Paul , Zdenek Kabelac , Linux Kernel Mailing List , intel-gfx@lists.freedesktop.org, jbarnes@virtuousgeek.org References: <20120522123058.GB4629@phenom.ffwll.local> <20120522144443.GD4629@phenom.ffwll.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: Linux phenom 3.4.0-rc6+ User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1007 Lines: 25 On Tue, May 22, 2012 at 06:21:22PM -0400, Sean Paul wrote: > On Tue, May 22, 2012 at 6:15 PM, Zdenek Kabelac > wrote: > > 2012/5/22 Zdenek Kabelac : > > And we have a winner - cec2f356d59d9e070413e5966a3c5a1af136d948 > > > > Hmm, seems like your display doesn't like to be downclocked, or rather > you don't like it to be downclocked :) The reason this patch triggered > it is because it does a better job of finding a compatible clock. You > can disable lvds downclocking on the kernel command line by setting > i915.lvds_downclock=0 ... which is actually the default. Zdenek, are you enabling this option on your kernel cmdline? -Daniel -- Daniel Vetter Mail: daniel@ffwll.ch Mobile: +41 (0)79 365 57 48 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/