From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: Re: Corruption in glxgears with Compiz Date: Fri, 22 Oct 2010 20:29:40 +0100 Message-ID: <5b55a1$ien4q1@fmsmga002.fm.intel.com> References: <1287751996.19922.4.camel@pcjc2lap> <849307$a3hfvt@azsmga001.ch.intel.com> <1287774644.17191.9.camel@pcjc2lap> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 6B9F89E78A for ; Fri, 22 Oct 2010 12:29:43 -0700 (PDT) In-Reply-To: <1287774644.17191.9.camel@pcjc2lap> 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: Peter Clifton Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Fri, 22 Oct 2010 20:10:44 +0100, Peter Clifton wrote: > As an additional data-point, with the bug manifesting, if you go to > "expose" mode, (Win+E for default config), you find the corruption is > absent. It only appears to be present when the glxgears window is not > scaled by the window manager. My guess is that it is a double application of the drawable offset when doing a CopyRegion swapbuffers. Does the corruption move in relation to the window as it moves? This suggests that [my] recent changes to the ddx are to blame, and certainly a bisection on -intel might help - though it's probably just as easy to test before the shadow+dri changes to confirm. -Chris -- Chris Wilson, Intel Open Source Technology Centre