Hi folks,
since a longer time I didn’t get any notifications from my rolling distro. For example when I start Radiotray it doesn’t display any title or artist name delivered by the stream. How can I bring these messages back on screen?
First make sure notifications are enabled in your application.
Menu > System Settings > Applications and System Notifications
Also For GTK applications make sure you have libappindicator-gtk2, libappindicator-gtk3 and libappindicator-sharp installed as well as lib32-libappindicator, lib32-indicator and libnotify. The reason is that QT4 was been patched upstream (Arch) to work with Plasma 5’s System Tray.
I have check them on my system. There are some lib’s to install but lib32-indicator I haven’t found with Octopi. After install the lib’s the KDE notification didn’t work.
oops my bad, that must have been a typo, what I meant to put was lib32-libindicator.
Do you have sni-qt installed as well?
sni-qt: Qt4 plugin which turns all QSystemTrayIcon into StatusNotifierItems (appindicators)
Okay… 
sni-qt was also lacking at my system. I have install it but nothing changed. The tray icons are animated but no notification service is shown (tested with radiotray). With Thunderbird a notification is poping up but these are the notification from Thunderbird itself.
Did you reboot after installing the libraries?
They won’t be loaded unless you reboot or log out.
Yes, I have reboot the system, but no change. :dodgy:
I’m still getting notifications here, radiotray and dropbox also seem to be working as normal.
Ok, I think I know what is wrong, you have two options here:
Either add the notifications widget to the panel:
Right click on the panel select panel Options > Add Widget, search for Notifications and drag it to the panel where you wish it to be placed.
or add Notifications to the System Tray itself:
Right click on the System Tray in the panel and select System Tray Settings then select General > Extra Items here make sure the radio button next to Notifications is marked.
Hopefully, this will fix your Issue.
Is that simple! 
Now my notifications are back. Thank You Aj…
Your welcome.
Could you do me a favor and put (solved) at the beginning of your original thread title.
Thanks in advance.