[Dmitry Smirnov]
> As I can see from your reproducer example you did not read "README.Debian" 
> where you could find information how to invoke "phantomjs" with "xvfb-run"...
>
> It is essential to pass the following option to "xvfb-run":
>
>     --server-args="-screen 0 640x480x16"
>
> because by default Xvfb starts at 8bpp and GLX doesn't work at 8bpp.
> Read more at
>
>     https://bugzilla.redhat.com/show_bug.cgi?id=904851

Aha.  You are right, I did not consult README.Debian, I found the
suggestion about xvfb-run on a web page and used it.  Thank you very
much.  This worked great!

What about modifying the "Could not initialize GLX" message to suggest
using that argument, or point to README.Debian?

-- 
Happy hacking
Petter Reinholdtsen

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