This is not so much a KDE Plasma 5 issue, but more an issue of legacy applications still not supporting a reasonable systray protocol (SNI). There are workarounds like [sni-qt](https://launchpad.net/sni-qt), but this won't help with crippled/statically linked applications like Skype.
For more details on what's going on here, see this blog post by KDE's kwin developer Martin Gräßlin: http://blog.martin- graesslin.com/blog/2014/06/where-are-my-systray-icons/ I'm undecided whether distributions should really put effort in workarounds for legacy apps or instead should put pressure on the upstream of those projects to finally adopt SNI. - In one case, the user experience might suffer when a user expects an application to continue to work as "it always did" - In the other case, it keeps the whole ecosystem from finally adopting modern best practices and communicates to upstream projects "it's fine to use outdated technologies". -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pidgin in Ubuntu. https://bugs.launchpad.net/bugs/1455711 Title: pidgin icon does not appear in the System Tray on kde 5 Status in pidgin package in Ubuntu: Confirmed Bug description: Since upgrading to Ubuntu 15.04 pidgin does not appear in the System Tray area. As additional information I can say that is not the only, but applications such as skype or dropbox neither do. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: pidgin 1:2.10.9-0ubuntu8 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CurrentDesktop: KDE Date: Sat May 16 00:19:41 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-05-16 (0 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) SourcePackage: pidgin UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pidgin/+bug/1455711/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp