I just installed the newest LTS (18.04) and ran into this problem while setting it up. I need to be able to type in Korean (Hangul); I have been using Korean in 16.04 on two machines for the past few years, and it has worked without a problem.

After Korean is added as an additional language input sources, I cannot use it. I am able to select/toggle the various input languages via the dashboard icon and using super+shift; however only English characters appear when hitting keys.

For troubleshooting, I also added Hebrew, Hungarian, and Icelandic. The Hebrew works perfectly when selected. Both Hungarian and Icelandic only have a few characters changed which may be the default functionality of those layouts; I'm not familiar with them so I cannot be sure. As per the standard, right-alt should toggle between English and Korean characters, but it does not.

Additionally, I booted into my Windows partition and the right-alt key worked fine, so it is almost certainly not an issue with the actual keyboard.

Lastly, I have also tried using "gnome tweaks" -> "Keyboard & Mouse" -> "Additional Layout Options" -> "Korean Hangul/Hanja keys" to explicitly set the right-alt functionality, but it still doesn't work.

Any aid would be greatly appreciated! If I can't get Korean working, I'll be forced to go back to 16.04 (or Windows) and I really would prefer not to.

  • Have you enabled "Hangul mode"? – Gunnar Hjalmarsson Jun 23 '18 at 20:13
  • @GunnarHjalmarsson - I don't believe I have. Do you know where it would be located? – Michael Riess Jun 23 '18 at 20:27
  • When "Korean Hangul" is the current input source, you'll find that option if you click the input source indicator in the top bar. Optionally the shortcut <Shift>+<Space> toggles "Hangul mode" on or off. – Gunnar Hjalmarsson Jun 23 '18 at 20:35
  • @GunnarHjalmarsson - Thank you! That wasn't the problem, but your question gave me the solution nonetheless. I wasn't using "Korean Hangul". I must have missed it; I had "Korean" & "Korean 101/104 key compatible", and was trying to get those to work. "Show keyboard layout" on "Korean 101/104 key compatible" shows right-alt as the Hangul key so I assumed it was correct. – Michael Riess Jun 23 '18 at 20:44

There are multiple, 4 to be exact, options for Korean when adding an input source. To use Hangul, make sure the source is "Korean(Hangul)". In "Add an Input Source" it will have the gears icon to the right-hand side, as seen in the image below

Screenshot of Ubuntu 18.04 Region and Language settings window with Korean (Hangul) selected in the Add an Input Source window.

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