This also happens with non-GTK applications like xclock: Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:27 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:22:33 user-83BV rtkit-daemon[1793]: Supervising 9 threads of 6 processes of 1 users. Oct 02 11:22:33 user-83BV rtkit-daemon[1793]: Supervising 9 threads of 6 processes of 1 users. Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:21 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32e2d3880] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32ed489e0] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32e2d3880] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32ed489e0] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32e2d3880] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32ed489e0] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32e2d3880] is on because it needs an allocation. Oct 02 11:23:22 user-83BV gnome-shell[2293]: Can't update stage views actor [:0x55f32ed489e0] is on because it needs an allocation. Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Oct 02 11:23:24 user-83BV gnome-shell[2293]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead