The same sort of behaviour has been experienced, although not as easily reproducible, when using firefox with multiple open windows spread across different workspaces.
** Description changed: + Running the atom editor (www.atom.io) on ubuntu 14.04 with gnome-panel + + compiz leads to compiz crash when pressing alt-tab to switch to a + different window. + + 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu Description: Ubuntu 14.04.5 LTS Release: 14.04 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center compiz: Installed: 1:0.9.11.3+14.04.20160425-0ubuntu1 Candidate: 1:0.9.11.3+14.04.20160425-0ubuntu1 Version table: *** 1:0.9.11.3+14.04.20160425-0ubuntu1 0 500 http://ie.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:0.9.11+14.04.20140409-0ubuntu1 0 500 http://ie.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 3) What you expected to happen I expected ctrl-tab to switch me to a different window. 4) What happened instead The environment freezes, despite mouse still moving. No application or item in the windowing system responds and ultimately compiz crashes (~5 seconds later), leading up to black screen followed by a default graphical login prompt. This bug is fully reproducible in my environment and I'm eager to help debug it. ** Description changed: Running the atom editor (www.atom.io) on ubuntu 14.04 with gnome-panel + compiz leads to compiz crash when pressing alt-tab to switch to a different window. + Reproduces every time. 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu Description: Ubuntu 14.04.5 LTS Release: 14.04 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center compiz: Installed: 1:0.9.11.3+14.04.20160425-0ubuntu1 Candidate: 1:0.9.11.3+14.04.20160425-0ubuntu1 Version table: *** 1:0.9.11.3+14.04.20160425-0ubuntu1 0 500 http://ie.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:0.9.11+14.04.20140409-0ubuntu1 0 500 http://ie.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 3) What you expected to happen I expected ctrl-tab to switch me to a different window. 4) What happened instead The environment freezes, despite mouse still moving. No application or item in the windowing system responds and ultimately compiz crashes (~5 seconds later), leading up to black screen followed by a default graphical login prompt. This bug is fully reproducible in my environment and I'm eager to help debug it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1615304 Title: running the atom editor and pressing alt-tab causes compiz to freeze and crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1615304/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
