[Mesa-dev] [Bug 103699] Latest mesa breaks firefox on kde plasma with compositing on

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103699

Fredrik Höglund <fredrik at kde.org> changed:

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--- Comment #20 from Fredrik Höglund <fredrik at kde.org> ---
Created attachment 135782
  --> https://bugs.freedesktop.org/attachment.cgi?id=135782&action=edit
modified test case

The window decoration is a separate texture in kwin, so the decoration should
be rendered normally even if the fbconfig is causing a blending issue with the
window contents. I think it is more likely that binding the pixmap to a texture
failed, and kwin is skipping the window entirely as a result.

I'm attaching a modified version of the test case that prints all the
attributes kwin looks at, and also does the additional filtering and sorting of
fbconfigs that kwin does. This version also sets GLX_ALPHA_SIZE to 8 and
GLX_BUFFER_SIZE to 32.

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