https://bugs.kde.org/show_bug.cgi?id=420635
--- Comment #14 from Konrad Materka <mate...@gmail.com> --- > Maybe something is happening when SDDM launches Plasma? It may be that KDE is started in a different way, but I'm not an expert in this area. I was not able to reproduce this issue, I'm using exactly the same distribution. KDE Neon is popular among KDE developers, someone else would notice already, so it seems that this problem is very rare. We have another similar Bug 385828, so it is not that rare that you are the only one affected :) In that context, I would like to ask you for more help, but firstly I need to explain few technical aspects so that we will get as useful data as possible. System tray contains two type of items: * Plasmoids - these are not real applications, but embedded widgets, for example: Bluetooth, Network, Volume etc. You can recognize them by two things: in setting of System Tray they have disabled option and usually on click they show some panel, instead of menu. * SNI (Status Notifier Item) icons - all external applications like Skype, Dropbox, Discord, Telegram etc. It looks that the problem is with SNI icons - plasmoids are working fine. There is also a special case for SNI icons: legacy tray icons used by some old old application like KeePass2, Pidgin, xchat and all Windows application run with wine. The xembedsniproxy is used to translate legacy icons to SNI protocol. SNI icons are register in DBus service named "org.kde.StatusNotifierWatcher" - that's why I asked you to run "qdbus org.kde.StatusNotifierWatcher /StatusNotifierWatcher RegisteredStatusNotifierItems" - to list all icons IDs registered in that DBus service. The listIcons.sh scripts uses these IDs and just prints more information. In the situation you have, when icons are missing entirely but corresponding applications are running in the background, DBus service should not have them as well. This is the most important information to confirm first: is DBus service running and if it has or not icons registered. In your second comment, after running listIcons.sh, you received this error: "org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.". This is especially worrying and strange... You then posted this: "The error message is from NetworkManager. I accidentally had it disabled when". Can you give more details how did you disable NetworkManager? Can you reproduce the same situation again? Disabling Network Manager should not affect DBus, did you do anything else? Maybe it is related to your VPN configuration? I found this: https://www.privateinternetaccess.com/forum/discussion/33328/no-tray-icon-after-update-to-v80-on-ubuntu-17-10 -- You are receiving this mail because: You are watching all bug changes.
