Debian 12 Gnome DE

apparmor.d/groups/freedesktop/plymouthd

@@ -19,6 +19,7 @@ profile plymouthd @{exec_path} {
   network netlink raw,
 
   signal (send) peer=unconfined,
+  signal (send) set=(rtmin+23) peer=systemd-shutdown,
 
   ptrace (read) peer=plymouth,
 
@@ -63,4 +64,4 @@ profile plymouthd @{exec_path} {
   /dev/ttyS[0-9]* rw,
 
   include if exists <local/plymouthd>
-}
+}