Weird message after installation of the kernel RT

[linub]

After Recent Update > Why do I now get a Broadcast message on shutdown?

I recently let a system upgrade download and install in my Manjaro and now when I shutdown I get a message just before the laptop turns off: "Broadcast message from [logged in user @ "Computer name"]. The system is going down for a poweroff now!" I didn’t ever use to get that message before and I have started getting a beep sound as well right before shutdown. I already tried this: echo "blacklist pcspkr" | sudo tee /etc/modprobe.d/nobeep.conf But I still get the message and instead of gett…

the first two lines,i have no idea,
and i also get the broadcast message sometimes,but it doesn’t bother me for now.