(gnome-panel:12495): Gdk-ERROR **: The program 'gnome-panel' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
(Details: serial 22204 error_code 8 request_code 62 (core protocol) minor_code 0)
(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.)
[1]+ Jäljitys/katkaisupisteansa gnome-panel
This might be ralated to this Unity3d bug with gnome-panel: https://bugs.launchpad.net/ubuntu/+source/libwnck3/+bug/1293252