Comment 2 for bug 1755831

My input method (ibus-unikey) was automatically installed when I checked Vietnamese in "Language Support".
There should be an icon like this in system tray: http://2.bp.blogspot.com/-n_blnCYePd4/VzNzI3OdpCI/AAAAAAAAA1A/Tw7mC70z2BcQyD9SGSrLr5noIyZLc6oNACK4B/s1600/Screenshot%2Bfrom%2B2016-05-12%2B00-59-37.png
But I cannot find it in my case and this is what show in the drop-down (it seems I can't take screenshot when point to the keyboard layout indicator, so I used my phone to take this picture): https://i.imgur.com/dPM35rT.jpg
That's why I can't configure my input method.