* [Bug 71138] flashlight bug in L4D2
2013-11-01 19:48 [Bug 71138] New: flashlight bug in L4D2 bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #1 from yashax@windowslive.com ---
Created attachment 88507
--> https://bugs.freedesktop.org/attachment.cgi?id=88507&action=edit
Re-uploading the first screenshot.
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2013-11-01 19:48 [Bug 71138] New: flashlight bug in L4D2 bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #2 from yashax@windowslive.com ---
Created attachment 88508
--> https://bugs.freedesktop.org/attachment.cgi?id=88508&action=edit
Another screenshot showing the black spots.
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2013-11-01 19:48 [Bug 71138] New: flashlight bug in L4D2 bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
Alex Deucher <agd5f@yahoo.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #88506|text/plain |image/png
mime type| |
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #3 from Vadim Girlin <ptpzz@yandex.ru> ---
This looks like z-fighting issues. You might want to try disabling compiler
backends via R600_DEBUG environment variable:
R600_DEBUG=nollvm
R600_DEBUG=nosb
R600_DEBUG=nollvm,nosb
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #4 from yashax@windowslive.com ---
(In reply to comment #3)
> This looks like z-fighting issues. You might want to try disabling compiler
> backends via R600_DEBUG environment variable:
>
> R600_DEBUG=nollvm
> R600_DEBUG=nosb
> R600_DEBUG=nollvm,nosb
The bug still exists with these environment variables.
The bug report and my last tests were done with shader detail setting on low.
I found that the bug happens with shader detail on low and medium, but on high
and very high the bug disappears.
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #5 from Benjamin Bellec <b.bellec@gmail.com> ---
I'm experiencing the same issue, with the same hardware.
I tried different graphics settings. The corruption exists only when the
"shader detail" ("Détails de l'image" in french) is set to "low" or "mid". When
set on "high" or "very high", there is no problem. All other settings doesn't
change anything.
Note that when the character is in the sunlight, then the flashlight have less
incidence (less blinking textures).
Here is a video showing the bug (199.6 MiB):
http://ubuntuone.com/12CfgEkAOwaBvgXKQILIxR
I have also a Radeon HD 5870 (AMD CYPRESS), and there is no such problem with
this card (same software config).
-------------------
System information:
Radeon HD 4850 (RV770)
Fedora 19 x86-64
Linux 3.11.9-200.fc19.x86_64
libdrm 2.4.49-1.i686
OpenGL renderer string: Gallium 0.4 on AMD RV770
OpenGL core profile version string: 3.1 (Core Profile) Mesa 10.1.0-devel
(git-5455c81)
OpenGL core profile shading language version string: 1.40
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^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug 71138] flashlight bug in L4D2
2013-11-01 19:48 [Bug 71138] New: flashlight bug in L4D2 bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #6 from Benjamin Bellec <b.bellec@gmail.com> ---
It seems that nv50 (GT218) has the same issue.
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #7 from Benjamin Bellec <b.bellec@gmail.com> ---
Disabling Hyper-Z with R600_DEBUG=nohyperz doesn't fix the bug (tested on RV770
and current master).
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #8 from Benjamin Bellec <b.bellec@gmail.com> ---
I tested with an old Mesa release (9.0 from the spot.fedorapeople.org/steam
repo) on Fedora 17, and the problem is already here.
It would be nice if somebody can test with the proprietary driver and with
intel driver.
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^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug 71138] flashlight bug in L4D2
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
--- Comment #9 from yashax@windowslive.com ---
It looks like this bug is fixed with current mesa master. Can you please verify
that on your hardware?
-------------------
System information:
Radeon HD 4850
Ubuntu 13.10 x86_64
Linux 3.14
libdrm 2.4.53+git1404110630.504d60
xserver-xorg-video-radeon 7.3.99+git1404022026.ed0cfb
OpenGL renderer string: Gallium 0.4 on AMD RV770
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.2.0-devel
(git-55f9bbd saucy-oibaf-ppa)
OpenGL core profile shading language version string: 3.30
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https://bugs.freedesktop.org/show_bug.cgi?id=71138
Benjamin Bellec <b.bellec@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #10 from Benjamin Bellec <b.bellec@gmail.com> ---
Yes I confirm this is now fixed.
I can even add the fix was:
commit: e9822f77a9cc024f528d30382fd5ad21c73a173b
title: glsl: Skip making a temporary for assignments when we don't need one.
author: Eric Anholt <eric@anholt.net>
date: 2014-04-08 07:59:47 (GMT)
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