[Bug 268652] Qt5: Some apps fails to start after upgrading to 5.15.7

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268652

--- Comment #6 from Guido Falsi <madpilot@FreeBSD.org> ---
Hi,

I have also seen no issues so far.

Your error message has some very specific information about an xcb plugin
failing to start, I think you should investigate that.

you should also check your Xorg logs, including the xsession log (usually
somewhere in home directory, depends on how you start your X session). There
could be indications there on why xcb (which is a basic X11 mechanism) fails.

Maybe you need to rebuild some more basic Xorg component?

a quick search on the internet does turn out some pointers for your problem,
for example:

https://stackoverflow.com/questions/17106315/failed-to-load-platform-plugin-xcb-while-launching-qt5-app-on-linux-without

Have you tried googling the original error message?

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