Hello Olivier, When the compositor is disabled and that you cycle trough the available windows with alt+tab, once you're back to the current window there is no visual feedback letting the user know where the selected window is.
Dupe of bug 11995 ?
It would appear so. I did not find that one when I looked for an eventual already existing bug report. Sorry for the noise. *** This bug has been marked as a duplicate of bug 11995 ***