I've been having a segfault problem with matlab, it will die and leave the gui hanging around, to which the close button does nothing.
I've since fixed the matlab issue, but for future reference, I'd like to know how to find and kill this window. The window is not tied to a process (as far as I can tell with
ps -aux | grep matlab), and appears to be a "zombie" window.
Does this have to be done through x, or is there a process I just can't see?