As a workaround I use custom application launcher "sh -c 'killall gkrellm 2>/dev/null || gkrellm'" from the panel instead of using alltray.
-- clicking to alltray tray icon does not show/hide anymore https://bugs.launchpad.net/bugs/250460 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
