(In reply to Ralf Czekalla from comment #7) > Created attachment 823775 [details] > Selective screenshot of Solaar with newest Logitech device I have showing > battery status > > This is a screenshot of Solaar with my newest Logitech device I have at > hand, a K400plus. > > I haven't seen any problems with Logitech devices over the last years with > Solaar. Only the really old receivers with PS2 connectors are not recognized > because the kernel is not yet extended for these old ones. > > Not sure if the ltunify might cause your problems offering somehow similar > options but AFAIK has not such a nice KDE5/plasma interface as shown in the > screenshots Solaar can offer. I have also MX Vertical but after experiences with the other devices I did not even try to use solaar with it. Sorry, it is not useful here.