I've also encountered this error - while trying to remotely connect using XRDP. After remote login, sesman-xvnc started a new session where Compiz refused to run (-> crashed).
pavel@Pavel-Ubuntu:~$ apt-cache policy compiz compiz: Instalovaná verze: 1:0.9.9~daily13.03.20-0ubuntu1 Kandidát: 1:0.9.9~daily13.03.20-0ubuntu1 Tabulka verzí: *** 1:0.9.9~daily13.03.20-0ubuntu1 0 500 http://cz.archive.ubuntu.com/ubuntu/ raring/main amd64 Packages 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1064602 Title: compiz crashed with SIGSEGV in CompositeScreen::compositingActive() from PrivateCompositeWindow::PrivateCompositeWindow() from CompositeWindow::CompositeWindow() To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1064602/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs