From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754331AbcFPWmQ (ORCPT ); Thu, 16 Jun 2016 18:42:16 -0400 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:60440 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754087AbcFPWmP (ORCPT ); Thu, 16 Jun 2016 18:42:15 -0400 Message-ID: <1466116932.2257.4.camel@HansenPartnership.com> Subject: Re: [Intel-gfx] Bad flicker on skylake HQD due to code in the 4.7 merge window From: James Bottomley To: Daniel Vetter Cc: Jani Nikula , intel-gfx , dri-devel , linux-kernel , Rodrigo Vivi Date: Thu, 16 Jun 2016 15:42:12 -0700 In-Reply-To: <1466112547.2311.3.camel@HansenPartnership.com> References: <1464638381.2240.3.camel@HansenPartnership.com> <871t4ibr7k.fsf@intel.com> <1464701638.2234.1.camel@HansenPartnership.com> <87mvmp9z03.fsf@intel.com> <1466111747.2311.1.camel@HansenPartnership.com> <1466112547.2311.3.camel@HansenPartnership.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2016-06-16 at 14:29 -0700, James Bottomley wrote: > On Thu, 2016-06-16 at 23:24 +0200, Daniel Vetter wrote: > > I guess we'll need the bisect on this one to make progress. > > Sigh, I was afraid that might be the next step. OK, I have a curious data point. I assumed the problem would be somewhere in the drm update, so I started bisecting that at the top. However, the top most commit: commit 1d6da87a3241deb13d073c4125d19ed0e5a0c62c Merge: 1f40c49 a39ed68 Author: Linus Torvalds Date: Mon May 23 11:48:48 2016 -0700 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux Isn't actually bad. There's no flicker here, so whatever caused the problem came from some update after this. James