Anyone can provide a valid (and recent) stacktrace for this? Install compiz-core-dbgsym compiz-plugins-default-dbgsym unity-dbgsym packages from ddebs repos¹. When the hang happens, just do Ctrl+Alt+F1 and from tty1 one do something like: sudo gdb -p $(pidof compiz)
Once gdb is loaded, do a: set logging file compiz-hang.txt set logging on bt full Exit from gdb and attach the "compiz-hang.txt" file (or any other name you chose) here. [1] https://wiki.ubuntu.com/DebuggingProgramCrash#Non-built- in_debug_symbol_packages_.28.2A-dbgsym.29 -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/815996 Title: Desktop occasionally freezes/locks up when switching workspaces To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/815996/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp