[Bug 96435] [bisected: 3b4486] Alien: Isolation, shader problems on characters show flickering colors.
https://bugs.freedesktop.org/show_bug.cgi?id=96435
Bug ID: 96435 Summary: [bisected: 3b4486] Alien: Isolation, shader problems on characters show flickering colors. Product: Mesa Version: git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel@lists.freedesktop.org Reporter: alexandre.f.demers@gmail.com QA Contact: dri-devel@lists.freedesktop.org
"Alien: Isolation" began showing some problems related to compute shaders today. Alien, Ripley and any other characters (droids...) have their appearance flickering and showing strange colors. Bisecting gave the following.
3b44864ab794ea487d22499e7e2c42565aaac085 is the first bad commit commit 3b44864ab794ea487d22499e7e2c42565aaac085 Author: Marek Olšák marek.olsak@amd.com Date: Fri Jun 3 19:17:46 2016 +0200
radeonsi: fix images with level > 0
This should fix spec@arb_shader_image_load_store@level.
Broken by: Commit: 95c5bbae66af3ca1f805d94f6fe8d8e4ba2c9c43 radeonsi: set some image descriptor fields at bind time
Reviewed-by: Bas Nieuwenhuizen bas@basnieuwenhuizen.nl
:040000 040000 48196e8b6f41a823b3ec07e9aa21dd3c01ac7edc e6524187d496af18187effda79adad6b84774f2d M src
Using latest ddx and drm from git repository, kernel 4.7-rc2 on ArchLinux 64.
https://bugs.freedesktop.org/show_bug.cgi?id=96435
--- Comment #1 from Alexandre Demers alexandre.f.demers@gmail.com --- By the way, using a R9 280X.
https://bugs.freedesktop.org/show_bug.cgi?id=96435
--- Comment #2 from Alexandre Demers alexandre.f.demers@gmail.com --- Well, after playing a bit more, I should say that the culprit commit only intensify the problem (generalize it to all a whole character). Otherwise, prior to that commit, it seems some parts of characters are not rendering correctly. I'm bisecting to identify when and which was the first problematic commit.
https://bugs.freedesktop.org/show_bug.cgi?id=96435
--- Comment #3 from Alexandre Demers alexandre.f.demers@gmail.com --- Well, it seems a combination of both Mesa and kernel triggers this bug. After trying to find a good commit (a commit that I knew was not showing this problem earlier) yesterday, and since I was unable to find one, I thought about the fact that I was now using a 4.7-rc2 kernel since monday. So I just went back to kernel 4.7-rc1 and now I'm able to find a good commit. In fact, even using commit 3b4486 works fine with an 4.7-rc1 kernel.
I'll try to bisect the kernel between 4.7-rc1 and 4.7-rc2 to see if I can find the culprit commit on the kernel side.
https://bugs.freedesktop.org/show_bug.cgi?id=96435
--- Comment #4 from Alexandre Demers alexandre.f.demers@gmail.com --- I'll close it for now since I'm unable to reproduce it with the original setup. If I see it again, I'll reopen it.
https://bugs.freedesktop.org/show_bug.cgi?id=96435
Alexandre Demers alexandre.f.demers@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |INVALID
dri-devel@lists.freedesktop.org
-
bugzilla-daemon＠freedesktop.org