Bug 34097

Summary: Screen clearing issues in Minecraft and Blender
Product: Mesa Reporter: Sven Arvidsson <sa>
Component: Drivers/Gallium/r300Assignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: Minecraft after switching from fullscreen
Rendering in Blender

Description Sven Arvidsson 2011-02-09 11:03:21 UTC
Created attachment 43170 [details]
Minecraft after switching from fullscreen

When switching between fullscreen and window in the game Minecraft, or when pressing F12 to render the scene in Blender, I'm getting a a corrupt screen.

Sometimes it looks like it contains traces of a previously running gl application, so maybe some buffer or something isn't cleared properly?

This isn't a new bug (seems to be present at least as far back as 7.9) or a very important one, but would be nice if it could be fixed. 


System environment:
-- system architecture: 32-bit
-- Linux distribution: Debian unstable
-- GPU: RV570
-- Model: Asus EAX1950Pro 256MB
-- Display connector: DVI

-- xf86-video-ati: 6.13.2
-- xserver: 1.9.4
-- mesa: 04c5cc5b8bec1f34f2405b08fd0d9ed6bd70ea61
-- drm: 2.4.23
-- kernel: 2.6.37
Comment 1 Sven Arvidsson 2011-02-09 11:03:42 UTC
Created attachment 43171 [details]
Rendering in Blender
Comment 2 Sven Arvidsson 2011-02-09 11:45:52 UTC
I should also mention that this problem doesn't appear with llvmpipe, so I guess it's specific to r300g.
Comment 3 Marek Olšák 2011-02-22 05:41:42 UTC
Is there anything in dmesg?
Comment 4 Sven Arvidsson 2011-02-22 09:46:09 UTC
(In reply to comment #3)
> Is there anything in dmesg?

Nothing in dmesg.
Comment 5 Sven Arvidsson 2011-05-16 09:19:27 UTC
I'm having exactly the same problem on r600g, so maybe this bug belongs to xf86-video-ati?
Comment 6 Tomasz P. 2012-12-04 18:15:37 UTC
on rv350 rendering in blender looks normal with mesa-git, is the situation changed with current mesa ?
Comment 7 Sven Arvidsson 2012-12-05 15:46:26 UTC
(In reply to comment #6)
> on rv350 rendering in blender looks normal with mesa-git, is the situation
> changed with current mesa ?

Thanks for reminding me to re-test this.

So with r600g I can no longer reproduce this with Minecraft or Blender, but both are moving targets and no longer the same version I was testing with so I'm not sure if it was fixed in the driver or not.

If no one else has these issues I think we can consider this problem solved.

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