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List:       kwin
Subject:    Re: Task switcher extremely slow after upgrading to mesa 9.1
From:       Stefano Avallone <stavallo () unina ! it>
Date:       2013-02-27 15:51:55
Message-ID: 2335650.u4dciMRNdx () sausalito
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On Wednesday 27 February 2013 16:14:23 Thomas Lübking wrote:
> On Mittwoch, 27. Februar 2013 15:34:37 CEST, Stefano Avallone wrote:
> > Can I do something else to help you track down this issue?
> 
> Does the blur filter (enable OpenGL 2.0 shaders, disable caching in the blur
> effect) expose a similar regression?

I am not sure I got what you meant. Anyway, with OpenGL 2 shaders enabled, I 
disabled the option "Safe intermediate rendering result" (the only one 
available) in the Blur effect settings. With mesa 9.1, disabling this option 
has no effect, meaning that the task switcher is still very slow.

> Is this only for kwin_gles or (also) for kwin?

Interestingly, kwin_gles is unusable with mesa 9.1. The screen is completely 
messed up. I am going to attach a snapshot, along with the requested outputs, 
to the bug report pointed out by Martin:

https://bugs.kde.org/show_bug.cgi?id=313613

which seems to be related to this issue.

Thanks,
Stefano


> Please post/attach the output of "glxinfo -l" for mesa 9.0.x and mesa 9.1.
> 
> 
> Cheers,
> Thomas
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