I have the confirmation that the problem is caused by Compiz and that the windows are not closed : when I click on Appearance -> Visual Effects -> No effects, all the windows appears again
-- Show/hide desktop bug with compiz https://bugs.launchpad.net/bugs/149880 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
