System tray doesn't show application icons (openSUSE 12.3, KDE4)

[Knurpht]

Hi and thanks again.
However, in the meantime, I've already restored most of my settings to the way I was used to, so there is no need to go back to the old set of settings and try to fix this problem. For me, this would be a waste of time.

By the way, I tried removing and adding back the Systray before and that didn't work. Pidgin also does not appear in the "extra items" section of the Systray configuration.
Some extra info: I use two screens with a panel on both screens and by default, the application icons show up only on one Systray, while the other one does not have these icons. So, my theory is that with the settings brought over from Suse 11.3, KDE "believed" there was a panel somewhere that had the full set of icons and wouldn't show them as a result. This is just a theory an maybe it's wrong. It doesn't matter anyway.

Indeed the cause should be in old settings from the KDE version that came with 11.3, that's my thought too. But, what I don't read here is whether we should consider this fixed/solved/over and done with.

[wolfi323]

By the way, I tried removing and adding back the Systray before and that didn't work. Pidgin also does not appear in the "extra items" section of the Systray configuration.
Some extra info: I use two screens with a panel on both screens and by default, the application icons show up only on one Systray, while the other one does not have these icons. So, my theory is that with the settings brought over from Suse 11.3, KDE "believed" there was a panel somewhere that had the full set of icons and wouldn't show them as a result. This is just a theory an maybe it's wrong. It doesn't matter anyway.

Some time ago (I think it was KDE 4.5 if I am not mistaken) KDE introduced a new systray protocol that provides more features (the most visible difference is that icons using the new protocol get lit up when you move the mouse pointer over them).
One of the drawbacks of the old protocol was, that systray icons would only show up in one systray even if you have more than one. This was fixed with the new protocol, you can have multiple systrays and the icons show up in all of them.

Pidgin still uses the old protocol, so it only shows up in one systray.

Maybe you had a hidden systray somewhere in your old plasma config which caused icons using the old protocol not to show up anywhere else.

[Knurpht]

A bit off-topic, but I was a Pidgin user when running GNOME3 for a year. Before that I used Kopete on KDE. But now we have the Telepathy packages for KDE, which integrates instant messaging in the KDE desktop. I love it. It does all the things Pidgin can do, is configurable through KDE's systemsettings (own kcm module). G