Bug 37296

Summary:	[r600g] lighting artifacts on frozenbyte games
Product:	Mesa	Reporter:	Andre Heider <a.heider>
Component:	Drivers/Gallium/r600	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED INVALID	QA Contact:
Severity:	normal
Priority:	medium	CC:	christopher.m.penalver, sa
Version:	git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	screenshot

Description Andre Heider 2011-05-17 11:21:10 UTC

Created attachment 46835 [details]
screenshot

On a x86-64 host with a HD3870 running 2.6.39-2-generic (from ubuntu's oneiric) and

libdrm-2.4.25 and mesa compiled for 32bit:
OpenGL renderer string: Gallium 0.4 on AMD RV670
OpenGL version string: 2.1 Mesa 7.11-devel (git-390196e)

I get lightning artifacts with r600g on a couple of games from frozenbyte.com, most notably when using the flashlight in shadowgrounds.

Here's a apitrace capture: http://static.hackmii.com/dhewg/shadowgrounds.apitrace.xz

When replaying it via glretrace there're some weird window resizes, but the issue is visible when it doesn't crash :)

The issue does not exist with swrast.

Comment 1 Sven Arvidsson 2011-05-22 13:33:59 UTC

It's rendering fine on my redwood, so I guess this is hardware specific.

Comment 2 Christoph Brill 2015-11-18 20:12:18 UTC

The apitrace is no longer available and it was tested against an old version of mesa. Please retest and provide an apitrace if possible.

Comment 3 Christopher M. Penalver 2016-02-26 03:32:07 UTC

Andre Heider, Ubuntu Oneiric reached EOL on May 9, 2013. For more on this, please see https://wiki.ubuntu.com/Releases.

If this is reproducible in a supported release, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs.

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