I have been having an issue regarding keyboard short-cut to change input source between Japanese and English on a new iMac running on Sierra. On my old Mac, I used "command+space" (Fig. 1) to change the input source, but now on Sierra I have to use "control+space" (Fig. 2), which is quite inconvenient. Could someone help me how to set my system so that I can use "command+space" to change the input source?
MacOS – Can’t use command+space to change input source
japanesekeyboardlanguagemacosshortcut
Related Solutions
Could it be that you are accidentally hitting the input source switching shortcuts? If so, you can disable them in the System Preferences.
Also, if you find that the input language changes when you switch apps, this is actually normal behavior. By choosing “Use the same one in all documents” in the input source options, you can greatly decrease the chances of this happening. (With the exception of a few apps that seem to ignore/override this setting. Very annoying.)
If you've experienced this problem only when using Japanese keyboards, then I guess there is a different cause. I use US keyboards, but this unintended switching happens to me too. Mostly when switching to Adobe apps.
Check "Romaji" option for Kotoeri and remove "US" completely as it becomes useless with Kotoeri. This way you will have roman letters input just like with "US" keyboard.
If you have Japanese keyboard, use 英数 key to switch to Romaji input and かな key to switch to Kana input. If you have non-Japanese keyboard, it is possible whether to change input sources using hotkeys as displayed in Kotoeri preferences or to map Caps Lock key to switch input sources as many people do.
Best Answer
You are in the right place, but the wrong selection.
Select "Spotlight" from the list on the left. You can then uncheck the shortcut for Command Space allowing you to assign that to the shortcut you want to.