Change external keyboard layout for gaming-mode on Steam Deck

You need to have a root-password for this. If your not already having one do the following:

• Open a terminal (type terminal on desktop or use menu)
• type passwd
• enter your preferred password
• that password can now be used for all commands that need admin rights (those commands begin with sudo)

Now open a terminal, open the file with nano and put in the XKB_DEFAULT_LAYOUT into the file and press STRG+X and press y to save the file.

sudo nano /etc/environment

## add your wanted localization in the file (see the following file)

XKB_DEFAULT_LAYOUT=de

then reboot your steam deck and german keyboard layout will work in gaming mode (Happy qwertz!)

Edit: you can also use the decky plugin “KLang” in gaming-mode!