If I have three windows overlapping diagonally and move from one to the third passing the middle one, and rest the mouse over the third one, I don't get the focus the the third window. I stays stuff to the second one instead.
xfwm4 notifies the app that it should get focus, and the app is responsible of actually setting focs. This might cause some race conds between the apps themselves, but that's the standard correct behaviour. I don't think it's a bug in xfce, and I don't think it's avoidable.
Great. That explains the bahaviour. I did test it with GNOME and it had a similar result, which confirm your idea. This is not a bug after all. Thanks
Can you try this version? http://www.xfce.org/archive/test/xfwm4-4.0.6-cvs.tar.gz TIA Olivier.
I think things will improve a lot with the version 4.0.6
I can't reproduce the problem with 4.06