From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751159AbcFXK7k (ORCPT ); Fri, 24 Jun 2016 06:59:40 -0400 Received: from mail.fireflyinternet.com ([87.106.93.118]:59081 "EHLO fireflyinternet.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750963AbcFXK7j (ORCPT ); Fri, 24 Jun 2016 06:59:39 -0400 X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Date: Fri, 24 Jun 2016 11:59:30 +0100 From: Chris Wilson To: Steven Newbury Cc: Jani Nikula , James Bottomley , Daniel Vetter , intel-gfx , linux-kernel , dri-devel , Rodrigo Vivi Subject: Re: [Intel-gfx] Bad flicker on skylake HQD due to code in the 4.7 merge window Message-ID: <20160624105930.GA27113@nuc-i3427.alporthouse.com> Mail-Followup-To: Chris Wilson , Steven Newbury , Jani Nikula , James Bottomley , Daniel Vetter , intel-gfx , linux-kernel , dri-devel , Rodrigo Vivi References: <1466112547.2311.3.camel@HansenPartnership.com> <1466116932.2257.4.camel@HansenPartnership.com> <20160617072826.GI23520@phenom.ffwll.local> <87vb18uef2.fsf@intel.com> <1466204815.2199.2.camel@HansenPartnership.com> <1466373202.2280.3.camel@HansenPartnership.com> <1466686369.6831.1.camel@snewbury.org.uk> <87r3bohxh6.fsf@intel.com> <1466687652.6831.8.camel@snewbury.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1466687652.6831.8.camel@snewbury.org.uk> 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 On Thu, Jun 23, 2016 at 02:14:12PM +0100, Steven Newbury wrote: > On Thu, 2016-06-23 at 15:59 +0300, Jani Nikula wrote: > > On Thu, 23 Jun 2016, Steven Newbury wrote: > > > I'm seeing this on my IvyBridge.  I'll try reverting the commit > > > here > > > too, to see if it's the same issue. > > > > IvyBridge doesn't have low vswing for eDP. If reverting helps, it's a > > different failure mode. > > > It must be something else then.  Actually, in my case linus/master is > okay.  I saw the subject and though it must be the same issue.  I'm > seeing it with drm-intel nightly/next branches.  Shall I try to bisect > it?  Symptoms are similar, although I would describe it more like > flashes of a different buffer across parts of the screen. Try reverting ee042aa40b66d18d465206845b0752c6a617ba3f instead. -Chris -- Chris Wilson, Intel Open Source Technology Centre