I have similar issue with an Intel 965 (Macbook Santarosa). Randomly the window decorator crashes and I have to go to the appeareance settings disable effects and re-enable it. This is an output from .xsession-errors:
(PySwitcher.py:6924): Wnck-CRITICAL **: update_client_list: assertion `reentrancy_guard == 0' failed (PySwitcher.py:6924): Wnck-CRITICAL **: update_client_list: assertion `reentrancy_guard == 0' failed (PySwitcher.py:6924): Wnck-CRITICAL **: update_client_list: assertion `reentrancy_guard == 0' failed JACK tmpdir identified as [/dev/shm] (PySwitcher.py:6924): Wnck-CRITICAL **: update_client_list: assertion `reentrancy_guard == 0' failed <gtk.gdk.Pixbuf object at 0x82ffbe4 (GdkPixbuf at 0x83b39a8)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3c40)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2f90)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3a70)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3a70)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2ee8)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2f90)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3938)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2ee8)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3a00)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2e78)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2e78)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83a2e78)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3a38)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3d20)> <gtk.gdk.Pixbuf object at 0x82ffcac (GdkPixbuf at 0x83b3d20)> <gtk.gdk.Pixbuf object at 0x82ff -- Window bar disappeard after enable "Extra" in Appearance Preference https://bugs.launchpad.net/bugs/178832 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
