Plasma 5 Notifications In Wrong Locations

I use a version of Linux on the one of my computers named ‘Plato’, that has Debian / Stretch as its base, but which also has Plasma 5 as its desktop manager. This was a system which I created from a Kanotix Live DVD, from before Kanotix had an official Debian / Stretch release. According to that Live Disk, the desktop manager was LXDE !  LXDE stands for “Lightweight X Desktop Environment”, while Plasma 5 is the successor to KDE 4, and is a powerful, CPU-consuming desktop manager. In the meantime, Kanotix has created two official ‘Stretch’ releases, one with LXDE and one with Plasma 5, both named ‘Kanotix Steelfire’.

What I felt I needed to do with Plato, was to install Plasma 5 via the package manager, even though the Kanotix developers had not yet done so. This customized Plasma 5 environment has been running fine for some time.

But only recently, after my email client – Thunderbird – received an update to version 60.x, I did notice that some of my desktop notifications seemed a little odd. Instead of appearing as official Plasma / KDE notifications, they appeared either as stylized bubbles, or as more-boring drop-down lists from the center, of the top, of my screen. And so this can lead to some confusion, or to some doubt in whether the system is still stable. In fact, I’ve read some other complaints from the Web, of people who ran in to the same behavior exactly. What seemed to irk them as well as me most, was that although we can use our KDE / Plasma Notification settings to designate, where we want notifications to appear, these apparently rogue notifications seem to disregard this setting.

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