Miklos, sorry for the confusion. I've figured it out now. Breaking on gdk_x_error doesn't work at all, because the symbol is static (hence not breakable in release builds). Breaking on _XError gives false positives, showing harmless X errors that we do actually handle and are not fatal.
The correct place to break it seems is the "exit" function: break exit -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019337 Title: gtk-window-decorator crashes with BadWindow (invalid Window parameter), from XGetWindowProperty() from get_frame_type() To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1019337/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs