I have found a workaround by adding a sleep period of 5s in the startup application command line for my synergy and hplip-systray on ubuntu 20.04:
sh -c "sleep 5 ; exec /usr/bin/synergy" sh -c "sleep 5 ; exec hp-systray -x" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908921 Title: No system tray detected by hp-systray To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-appindicator/+bug/1908921/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
