I've reproduced this. Attaching the journal from within the VM. There are some warnings from gnome in there, not sure what to make of most of them. These did jump out at me though.
Sep 21 10:55:00 ubuntu-test gnome-shell[917]: Failed to apply DRM plane transform 0: Invalid argument
Sep 21 10:55:00 ubuntu-test gnome-shell[917]: Failed to apply DRM plane transform 0: Invalid argument
Sep 21 10:55:00 ubuntu-test gnome-shell[917]: Failed to apply DRM plane transform 0: Invalid argument
Sep 21 10:55:00 ubuntu-test org.gnome.Shell.desktop[917]: Disabling glamor and dri3, EGL setup failed
Sep 21 10:55:00 ubuntu-test org.gnome.Shell.desktop[917]: Failed to initialize glamor, falling back to sw
I've reproduced this. Attaching the journal from within the VM. There are some warnings from gnome in there, not sure what to make of most of them. These did jump out at me though.
Sep 21 10:55:00 ubuntu-test gnome-shell[917]: Failed to apply DRM plane transform 0: Invalid argument Shell.desktop[ 917]: Disabling glamor and dri3, EGL setup failed Shell.desktop[ 917]: Failed to initialize glamor, falling back to sw
Sep 21 10:55:00 ubuntu-test gnome-shell[917]: Failed to apply DRM plane transform 0: Invalid argument
Sep 21 10:55:00 ubuntu-test gnome-shell[917]: Failed to apply DRM plane transform 0: Invalid argument
Sep 21 10:55:00 ubuntu-test org.gnome.
Sep 21 10:55:00 ubuntu-test org.gnome.