A system icon of iBus is not displayed in Kubuntu Plasma 5

[BALLOON]

In Kubuntu 14.10 Plasma 5, a system icon of iBus is not displayed.
I installed Kubuntu 14.10 Plasma 5 in Japanese (日本語).
Because iBus-Anthy is installed then,
I change it to Anthy in Super+Space and can perform Japanese input again.
but systray does not have an icon, and a big problem occurs in operability.

This problem is one of the side effects of systray of Plasma 5 having changed the specifications:
https://community.kde.org/Plasma/5.0_Errata
http://blog.martin-graesslin.com/blog/2014/03/system-tray-in-plasma-next/

As for this problem, bug report is performed in iBus:
https://code.google.com/p/ibus/issues/detail?id=1749

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1399129/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[somekool (somekool)]

I am on Kubuntu 15.04

I setup ibus several times in the past several 10 years...

but I can't figure it out this time. maybe I got old ?

[BALLOON (balloon)]

As for this problem, solution was carried out on the iBus side:

https://code.google.com/p/ibus/issues/detail?id=1749

but the problem that a system icon is not displayed is continued while iBus is installed when I installed Kubuntu 15.04 in Japanese.
Therefore I report this comment and maintain current status.

The live boot of Kubuntu 15.04 displays a status icon of iBus.
Therefore a problem unlike Kubuntu 14.10 Plasma 5 may occur.

[Aron Xu (happyaron)]

It looks ibus 1.5.11 fixed quite some KF5 compatibility problems, let's see what happens after we update to it.