[Bug 29584] False reports of "Window not responding" error

[Yuriy Kozlov]

Public bug report changed:
https://launchpad.net/malone/bugs/29584

Comment:
Confirmed with KDE as well.  It takes more than 1-2 seconds, but if I
close a program with the X and some dialog pops up and for any reason I
don't let the program close right away, that dialog comes up that the
window is not responding.

Kubuntu AMD64 latest updates.