From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Romanick Subject: Re: gen6 (SNB) depthbuffer issue with OpenGL games Date: Tue, 19 Jul 2011 11:45:53 -0700 Message-ID: <4E25D0E1.9050601@freedesktop.org> References: <2025156323.8585806.1311087530390.JavaMail.fmail@mwmweb014> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from expn.cat.pdx.edu (expn.cat.pdx.edu [131.252.208.110]) by gabe.freedesktop.org (Postfix) with ESMTP id 5955A9F06F for ; Tue, 19 Jul 2011 11:46:16 -0700 (PDT) In-Reply-To: <2025156323.8585806.1311087530390.JavaMail.fmail@mwmweb014> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Nicolas Kalkhof Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 07/19/2011 07:58 AM, Nicolas Kalkhof wrote: > Hi there, > > I've experienced a strange depth buffer issue recently with OpenGL games > (see attached screenshots). It seems that the depth buffer fails on some > pixels. This problem was introduced somewhere between > Kernel-3.0.0-rc6-git6 and kernel-3.0.0-rc7. Both xf-86-video-intel and > mesa are latest git. > Could someone please look into it? That's very odd. Any chance you could bisect to find the bad commit? You should be able to just bisect the drivers/gpu/drm directory. I'm a bit suspicious that this is a kernel issue. There were only 5 commits in drivers/gpu/drm from rc6 to rc7, and none of them should affect any Intel GPUs at all. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAk4l0OEACgkQX1gOwKyEAw/BWQCfeySgLPcT1bdNxPcTJr/S2aw0 vvkAnjS5OJF18pRwrRKaMyG2zoXFqwqB =AiSG -----END PGP SIGNATURE-----