Public bug reported: Binary package hint: libxcb1
../../src/xcb_lock.c:62: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed. Signal Segmentation fault (core dumped) This happens at least with games Savage: battle for Newerth and Neverwinter Nights just by running the games in fullscreen mode. For some reason the windowed mode will work. ** Affects: libxcb (Ubuntu) Importance: Undecided Status: Unconfirmed -- Updated libxcb1 crashes the system. https://launchpad.net/bugs/95266 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs