Bug#868804: xrdp: doesn't show the session after loggin with Xorg

[Richard Kettlewell]

I see similar behavior, i.e. blue screen after supplying password.

I straced the whole thing. The Xorg wrapper fails, issuing the following
message. AFAICT this message isn't logged anywhere.

1841  1500648896.782569 write(2, "/usr/lib/xorg/Xorg.wrap: Only co"...,
76) = 76

This is "Only console users are allowed to run the X server" and indeed
putting allowed_users=anybody in /etc/X11/Xwrapper.config gets past this
particular issue.

However the result is then a black screen instead of a blue screen, so
it's not really much forward progress!

I can see in ps that there are a lot processes (marco, mate-panel, caja,
etc) running so it's certainly started a session; it's just not
displaying it for some reason.

ttfn/rjk