Bug#825930: Marco crashes when switching windows with composition and thumbnails enabled

[Raphaël Halimi]

Package: marco
Version: 1.14.2-3

Hi,

I'm not sure what triggers it, because at the beginning of a session,
when I just logged in, it works perfectly, but after some time,
switching windows with Alt-Tab makes Marco crash and restart.

Upstream changelog mentions "Fix crash on showing alt-tab thumbnails
with compositor on" for version 1.14.1; apparently it wasn't really
fixed, or the bug is triggered by something else, or it's a regression.

Indeed, composition is enabled, and disabling it makes the bug
disappear; likewise, when composition is enabled, changing the value of
the "compositing-fast-alt-tab" key from false (default) to true also
makes the bug disappear (along with the thumbnails).

Regards,

-- 
Raphaël Halimi

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