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Description of problem: gnome-shell can not be started Version-Release number of selected component (if applicable): gnome-shell-2.91.5-3.fc15.i686 Actual results: the gnome-shell can not be used Additional info (mutter:1930): mutter-WARNING **: Could not load library [/usr/lib/mutter/plugins/libgnome-shell.so (/usr/lib/mutter/plugins/libgnome-shell.so: undefined symbol: gdk_display_add_client_message_filter)]
Btw. the metacity fallback does not work so I end up without working WM. And I wonder why gnome-shell is started by default even when gnome registry contains metacity WM. Do you want to force gnome-shell to everybody?
Assume this was some transient problem with mutter and gtk being out of sync. There's been a lot of work on gnome-session handling of failure recently.