Michael Biebl <biebl at debian.org> wrote: > It's a different bug > > You have made a partial upgrade of libcogl. Your version of gnome-shell > tries to load both libcogl9 (via libcogl-pango_1.10.2-2) and libcogl5. I downgraded to libcogl-pango_1.8.2-1 (testing), which was enough to work around it for now. Thanks.