How to turn off auto-accent (e.g. 'e creates é)

Question

I´m running Ubuntu 16.04 LTS on an Acer Aspire S7.

Somehow, I managed to toggle on auto-accenting. That is, when I type ´ then s I get ś.

¨i = ï

~a = ã

`u = ù ... etc.

I just toggled this on today accidentally, but I can´t figure out how to turn it off! It´s super annoying to hit the space after the punctuation keys to get the symbol, especially when coding.

I don´t believe itś a problem with my keyboard layout - that hasn´t changed. I must have toggled it on via a keysmush of some kind. I am not using a 'dead key' keyboard layout, either.

This seems like it should be a simple fix, but I´ve googled around and I haven't found a solution! Some posts say that Ctrl + Shift usually toggles this function on and off, but that doesn't have any effect for me.

Thanks in advance for your help!

Edited to add: I´ve tried every combination of keys that I can think of that might toggle this function on/off, and switched keyboard layouts several times (rebooting each time), to see if that had any effect. No luck! I will really appreciate it if someone can help!

Per Gunnar Hjalmarsson's post below: gsettings get org.gnome.desktop.input-sources sources outputs:

[('xkb', 'us'), ('xkb', 'us+euro'), ('xkb', 'us+alt-intl'), ('xkb', 'us+intl')]

And gsettings get org.gnome.desktop.input-sources current outputs:

uint32 3

In GUI: Screenshot of Keyboard - Text Entry

Answer 1

Your current keyboard layout is English (US, international with dead keys). So you should switch to the basic English (US). The command line way is:

gsettings set org.gnome.desktop.input-sources current 0

You may want to check out the documentation about input sources, including how to switch between them. In your case it sounds as if you don't need any other keyboard layout but English (US), and in that case you may want to open Text Entry and remove the other in order to prevent more accidents. ;)