From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 90264] [Regression, bisected] Tooltip corruption in Chrome Date: Fri, 01 May 2015 03:55:37 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0926275456==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 3EAB86E8B4 for ; Thu, 30 Apr 2015 20:55:37 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0926275456== Content-Type: multipart/alternative; boundary="1430452537.0B3ECd1.2848"; charset="UTF-8" --1430452537.0B3ECd1.2848 Date: Fri, 1 May 2015 03:55:37 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=90264 --- Comment #4 from falaca@gmail.com --- When I set LIBGL_ALWAYS_SOFTWARE=1, chrome://gpu shows "Software only" for all the features, and the GL_RENDERER string is "Gallium 0.4 on llvmpipe (LLVM 3.6, 128 bits)". It does appear to be a bug somewhere in the Radeon-specific code, but based on my tests above, it looks like the bug is triggered by the Mesa commit that I bisected. The purpose of the commit (if I understand correctly) is to avoid processing redundant viewport updates, so it seems like that causes the radeon driver to display stale content. This may or may not be related, but here is another interesting screenshot: https://www.dropbox.com/s/9ydljofmj8kfxme/corruption_2.png?dl=0 That is my desktop, and you can see some white tiles surrounding the "Portal" icon. Those tiles are showing content from another window (Android Studio) which I had previously launched and then minimized. If you download the picture and zoom in, you can see the little folder icons with the Android logo on them. So that also seems like an issue of displaying stale content. -- You are receiving this mail because: You are the assignee for the bug. --1430452537.0B3ECd1.2848 Date: Fri, 1 May 2015 03:55:37 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 4 on bug 90264 from 
When I set LIBGL_ALWAYS_SOFTWARE=1, chrome://gpu shows "Software only" for all
the features, and the GL_RENDERER string is "Gallium 0.4 on llvmpipe (LLVM 3.6,
128 bits)".

It does appear to be a bug somewhere in the Radeon-specific code, but based on
my tests above, it looks like the bug is triggered by the Mesa commit that I
bisected. The purpose of the commit (if I understand correctly) is to avoid
processing redundant viewport updates, so it seems like that causes the radeon
driver to display stale content.

This may or may not be related, but here is another interesting screenshot:
https://www.dropbox.com/s/9ydljofmj8kfxme/corruption_2.png?dl=0

That is my desktop, and you can see some white tiles surrounding the "Portal"
icon. Those tiles are showing content from another window (Android Studio)
which I had previously launched and then minimized. If you download the picture
and zoom in, you can see the little folder icons with the Android logo on them.
So that also seems like an issue of displaying stale content.

You are receiving this mail because:
  • You are the assignee for the bug.
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