[X2Go-User] x2go session crashes xfwm4

[Ulrich Sibiller]

I tend to blame xfwm4. The error message also points to that direction...

When does this happen? Before starting a session? While starting a
session? During a session?

Uli

On Mon, Jan 18, 2021 at 10:59 AM Chris Green <cl at isbd.net> wrote:
>
> I've recently upgraded my system to xubuntu 20.10 and x2go sessions
> now crash the xfwm4 window manager.  After restarting xfwm4 from a
> terminal window I see the following crash report when I run another
> x2go session:-
>
>     xfwm4:15183): Gdk-ERROR **: 11:27:33.867: The program 'xfwm4' received
>     an X Window System error.
>     This probably reflects a bug in the program.
>     The error was 'XSyncBadAlarm'.
>       (Details: serial 213260 error_code 135 request_code 134 (SYNC) minor_code 11)
>       (Note to programmers: normally, X errors are reported asynchronously;
>        that is, you will receive the error a while after causing it.
>        To debug your program, run it with the GDK_SYNCHRONIZE environment
>        variable to change this behavior. You can then get a meaningful
>        backtrace from your debugger if you break on the gdk_x_error() function.)
>     Trace/breakpoint trap (core dumped)
>
> Is this a bug in xfwm4 or in x2go?
>
> --
> Chris Green
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