Below are the common causes for the tray icon not showing.
ps -ef | grep 'insync start'
In KDE Plasma 5 the XEmbed protocol was replaced with SNI, which caused legacy tray icons to not be shown. In this case try installing xembed-sni-proxy. (Thanks to Roman Gaevoy for this tip.)
Ok it worked, I installed the package in linux and it worked, perfect application in linuxThanks, anything I leave feedback
Installing sni-qt still works like a charme in ubuntu 17.10
Nice, I finally got it working with GNOME, too, by installing sni-qt (the tray icon disappeared after GNOME decided to remove the legacy tray).
Thanks for the hint, guys!
Great! confirmed working in Gnome 3 and Ubuntu 17.10!
I’m using Fedora 27 with Gnome. I just noticed that the tray icon is not showing up anymore (it was showing up until recently). sni-qt is installed, insync is running and I restarted it to make sure, still not showing up.
Have you developed a way to pop up the gui from command line ? If I recall there used to be a way to do so and you removed it after an update.
I am hving the same issue - it worked for a couple of days and then disappeared again … this is very frustrating, and I don’t know how to pop up the config gui other than from the tray icon… please advise, thanks!
I’m also having this issue on Fedora 27, sni-qt is installed and the program is running.
Found the solution: run qtconfig-qt4 and set the Qt4 theme to something other than Gtk+ and save.
BTW: I’ve installed the Topicon Plus extension (https://extensions.gnome.org/extension/1031/topicons/) to have the legacy try icons in the top panel (much easier to access them).
Also, remember to not have libindicator-gtk3 or libappindicator-gtk3 installed - these seem to conflict with sni-qt4 when insync tries to access an API to show up the icon.