I have figured out the origin of this bug (at least for me). The bug appeared for me yesterday because I had just installed unity (for fun) which brought in a bunch of zeitgeist packages. When I removed unity and all the zeitgeist packages, this bug goes away. In particular, libzeitgeist-gio libzeitgeist-1.0-0 seem to cause the trouble.
I can reproduce the bug 100% of the time and reproduce the fix every time by reinstalling unity and then removing it (and the zeitgeist packages). -- Docky freezes when launching application https://bugs.launchpad.net/bugs/628372 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs