https://bugs.freedesktop.org/show_bug.cgi?id=70042
Priority: medium Bug ID: 70042 Assignee: dri-devel@lists.freedesktop.org Summary: Major texture flickering in Dota 2 Severity: normal Classification: Unclassified OS: All Reporter: alexandre.f.demers@gmail.com Hardware: All Status: NEW Version: XOrg CVS Component: DRM/Radeon Product: DRI
Using a HD 6950 on Arch Linux 64 Using git codes for drm, mesa and ddx.
The game suffers from a major texture flickering in Dota 2. It has been since the release of the game. I'll attach an API Trace later today and some screenshots. It could be related to bug 68451, but the flickering is a lot more important than the screenshots seem to indicate.
I could also test by disabling shaders's sb optimization.
https://bugs.freedesktop.org/show_bug.cgi?id=70042
Alexandre Demers alexandre.f.demers@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|Major texture flickering in |Major texture flickering in |Dota 2 |Dota 2 (r600g on HD 6950)
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #1 from Alexandre Demers alexandre.f.demers@gmail.com --- We can cross off the board: sb optimization
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #2 from Alexandre Demers alexandre.f.demers@gmail.com --- I can't seem to be able to launch dota 2 with apitrace. I can launch Steam, but Dota keeps crashing at launch. I'll add screenshots later.
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #3 from Alexandre Demers alexandre.f.demers@gmail.com --- Created attachment 87012 --> https://bugs.freedesktop.org/attachment.cgi?id=87012&action=edit Visible corruption on mini-map
While the texture flickering is very fast, it appears as static on screenshots. On this one, textures flickering on the mini-map and a thin artifact on the left side of the screen (looks like a line, but it is most likely a triangle caused by the light coming from a tower)
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #4 from Alexandre Demers alexandre.f.demers@gmail.com --- Created attachment 87013 --> https://bugs.freedesktop.org/attachment.cgi?id=87013&action=edit Many glitches in the middle of the screen
Here, some more visible glitches flickering at an impressive pace.
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #5 from Alexandre Demers alexandre.f.demers@gmail.com --- Here is a link to a video exhibiting the corruptions/glitches. https://docs.google.com/file/d/0Bw_tZdWsNa4BN0ZmRy1DMnFKZWs/edit?usp=sharing
You'll notice glitches here and there, mostly triangles. On the minimap, on the player's face and on some elements (name or HP), it is really visible. Working on an api trace (I have a trace, working on trimming it down).
https://bugs.freedesktop.org/show_bug.cgi?id=70042
Alexandre Demers alexandre.f.demers@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://bugs.freedesktop.or | |g/show_bug.cgi?id=68451
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #6 from Alexandre Demers alexandre.f.demers@gmail.com --- attachment 87165 seems to fix the flickering
https://bugs.freedesktop.org/show_bug.cgi?id=70042
Alexandre Demers alexandre.f.demers@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |maraeo@gmail.com
--- Comment #7 from Alexandre Demers alexandre.f.demers@gmail.com --- Marek, should I continue with the API trace if the patch fixes the flickering?
https://bugs.freedesktop.org/show_bug.cgi?id=70042
--- Comment #8 from Marek Olšák maraeo@gmail.com --- No, I'll commit the patch.
https://bugs.freedesktop.org/show_bug.cgi?id=70042
Alexandre Demers alexandre.f.demers@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
--- Comment #9 from Alexandre Demers alexandre.f.demers@gmail.com --- I don't know the impact on performance of attachment 87165. Dota 2 was the only game I was experiencing this texture flickering. It would be interesting to understand what and why. Anyway, it fixes the issue, so closing this bug.
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