Instructions to setup Steam DeckUI. This has been tested on vanilla manjaro on a Macbook Pro, SteamOS 3 by Nazky and Manjaro by darkstorm.
- Install gamescope
- Install Steam, log in and go to settings, Steam Play and enable all other titles with Proton Experimental.
Steam will want to restart. Allow it.
- In a terminal window run:
steam -steamos3 -steamdeck -gamepadui. This may fail with a download error or a statement of no internet. Ignore this and re-run the command. You should get an update. Let this install.
- Once it's done you may get the download/internet error again, this is okay as the update we needed did install.
- Close the DeckUI window if one was open. Ctrl+C in the terminal will do this or the x on the window.
- In terminal run:
steam -gamepadui. Steam should simply launch the DeckUI. If it asks for an update of around 190,000KB (at time of writing) cancel it or Ctrl+C the terminal window. If you get the update screen simply proceed to the next step, as long as it didnt fully download.
- Once the DeckUI has loaded, close it and in terminal run:
gamescope -e -h 1080 -f -- steam -gamepadui -noverifyfiles. The DeckUI should load now in full screen.
There will be a .sh file attached that simply runs this command.
In order to close it, Alt+Tab to the terminal and Ctrl+C.
Exit to Desktop is not working as far as I can tell.
Do not take another update or you will most likely get a black screen on launch with gamescope.
If you do launch to a black screen, start this guide from the $ and make sure you only download the first update Steam gets. (During the first terminal command.)
If you use the .sh please make sure it opens in a terminal or execute it from within one. If you simply launch it, you will have to manually kill steam from a process manager or another terminal
.sh file no bash
.sh file bash
