Media controls should be shown on lock screen. Maybe under the time? This would include volume controls, play/pause back/forward, etc when KDE detects that music is playing. Reproducible: Always
+1 This would be nice...
Oh, by the way, when I say "when KDE detects that music is playing", I mean "when MPRIS says that music is playing" :)
Works for me on Plasma 5.10.4 when either smplayer or amarok is running. Maybe it wasn't implemented back then ? Can you retry ?
Yes, it was implemented with Plasma 5.10: https://www.kde.org/announcements/plasma-5.10.0.php So this one can be closed now.
Implemented