Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754261AbbEMJMk (ORCPT ); Wed, 13 May 2015 05:12:40 -0400 Received: from mga01.intel.com ([192.55.52.88]:46785 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754207AbbEMJMh (ORCPT ); Wed, 13 May 2015 05:12:37 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,420,1427785200"; d="scan'208";a="725171076" From: Jani Nikula To: Thomas Gummerer , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, David Airlie , Daniel Vetter , Thomas Gummerer , jan@gondor.com, Tvrtko Ursulin , Michael Leuchtenburg , Matt Roper Subject: Re: [BUG/REGRESSION] Screen flickering In-Reply-To: <87pp65efmo.fsf@hank.tgummerer.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <87pp65efmo.fsf@hank.tgummerer.com> User-Agent: Notmuch/0.19+112~g77230b0 (http://notmuchmail.org) Emacs/24.4.1 (x86_64-pc-linux-gnu) Date: Wed, 13 May 2015 12:14:39 +0300 Message-ID: <87iobw3klc.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1376 Lines: 37 On Tue, 12 May 2015, Thomas Gummerer wrote: > Hi, > > I noticed that on my machine the screen starts to flicker after I > suspend and resume my machine, on the main laptop display if an external > display is attached with kernel v4.1-rc1. I tracked the regression down > to commit c9f038a1a592 ("drm/i915: Don't assume primary & cursor are > always on for wm calculation (v4)"), and sent a patch that fixes that > behavior at [1] about two weeks ago, although I'm not sure it's the > right thing to do, as I'm not very familiar with the code. The same bug > still exists in vv4.1-rc3. > > Jan Niehusmann confirmed the behavior, but there has been no further > discussion on the topic. I also forgot to cc the people that were > involved in the patch that caused the regression (sorry about that). > > Is there anything else that I can do to help fixing this issue? Is this the same as https://bugzilla.kernel.org/show_bug.cgi?id=98141 ? BR, Jani. > > Thanks, > Thomas > > [1] http://lists.freedesktop.org/archives/intel-gfx/2015-April/065494.html -- Jani Nikula, Intel Open Source Technology Center -- 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/