After upgrading my xubuntu to 19.04 the use of my Brightness and Volume keys have a delay of 30+ sec and it looks similar to this topic: Fn Media keys slow/delayed on ubuntu gnome 17.04. I am using a HP Pavilion Laptop.

With ubuntu it works.

I think it is about the small pop-up message (Gnome's on-screen-display?), cause it does not pop up and every other fn-key not displaying a notification works flawlessly.


Solved it via this thread. It was the OSDs conflicting somehow. Renaming the unwanted ones helped:

$ cd /usr/share/dbus-1/services
$ sudo mv org.freedesktop.Notifications.service org.freedesktop.Notifications.service.bak
$ sudo mv org.kde.plasma.Notifications.service org.kde.plasma.Notifications.service.bak
$ sudo mv org.mate.panel.applet.NotificationAreaAppletFactory.service org.mate.panel.applet.NotificationAreaAppletFactory.service.bak
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  • Samesame here, on my Schenker Laptop. Thanks for sharing! – Bastian Voigt Nov 28 '19 at 16:13

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