Comment 51 for bug 408065

actually I've added the stencil buffer some times after the integration of
OpenGL into the dock (for the Curve view)
And I remember that the number of Visuals I got with my NVidia was
unchanged, so I'm not sure it is the problem. At that time, there was
already no matching visuals on other cards, even without this condition on
the stencil.

but well, I can try to double check, the first time with sterncil, the
second without.

By the way, what's the difference with gdk_gl_config_new_by_mode and
glXChooseFBConfig
?
the first one always gives more results, but (on my NVidia), both give me a
valid Visual that I can use.

2009/8/28 <email address hidden>

> http://bugs.freedesktop.org/show_bug.cgi?id=23386
>
>
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>
>
> --- Comment #27 from Michel Dänzer <email address hidden> 2009-08-28
> 07:51:25 PST ---
> Okay, I think I see the problem. It looks for a visual which
>
> 1. Has depth and stencil bits.
> 2. Has a corresponding picture format with alpha bits.
>
> 1. is satisfied by many visuals, but 2. is only satisfied by the depth 32
> visual, which probably doesn't have stencil bits. It may be possible to fix
> this with yet another rework of the xserver GLX visual code, but in the
> meantime could cairo-dock work without a stencil buffer?
>
>
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