As you can see in the attachment, WindowManager::Undecorate() calls XGetWindowProperty() and ret is null in xcb_wait_for_reply()
** Attachment added: "gdb output" https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/755078/+attachment/2002943/+files/problem_maximise.log ** Package changed: compiz (Ubuntu) => unity (Ubuntu) ** Changed in: unity (Ubuntu) Importance: Undecided => High -- 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/755078 Title: Maximising the window causes Unity to lock up at times _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp

