Comment 2 for bug 2029413

From the log the error is this one:

Received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadValue (integer parameter out of range for operation)'.
(Details: serial 4347 error_code 2 request_code 131 (XInputExtension) minor_code 53)
(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 MUTTER_SYNC environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the meta_x_error() function.)