[Bug 77402] KWin crash in brw_workaround_depthstencil_alignment on Haswell

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77402

--- Comment #2 from Kenneth Graunke <kenneth at whitecape.org> ---
Huh, I've never seen this failure mode.  But it sounds entirely plausible.

The X server's GLX code has a bug where it may randomly return a bogus
visual/fbconfig; perhaps it ended up not having stencil, and we crashed?

That bug is fixed in X server git, and the upcoming 1.15.1 and 1.14.6 releases
(due any day now).  Alternatively, you could try asking KWin to use EGL:

   KWIN_OPENGL_INTERFACE=egl kwin --replace &

Does either of those fix this issue for you?

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