I forgot to tell that I work with Xinerama and a Dual Screen Config and 4 virtual screens and a NVIDIA gfx card. Maybe this will give hints as you'll see later.
So after several tests I found a way to get rid of the problem. As I previously explained, closing and opening a gnome session make the problem come back. - So I open a new gnome session. - I open any application and then a terminal window on my left screen. - I try Alt+tab but it doesn't work yet. - I drag my windows to my right screen - I retry Alt-tab but it still doesn't work. - I open an ssh or mysql DISTANT connection in my terminal window. - I drag my terminal window from right screen to left screen and then... both my screens blink, as if refreshing themselves and that's it : Alt-tab works again. - By the way Ctrl+Alt+tab work again. I can make more tests, or provide with any conf file if needed. I can tell you that Alt+tab not working is a real productivity killer when you're used to work with the keyboard at 99% (I switch from vim to firefox a thousand times a day to develop my apps, so this is quite annoying ). I think this bug importance should have been listed as medium at least. -- Window don't get focus https://launchpad.net/bugs/59068 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
