ProtonDB | User Profile for Nestorios

Tinker Steps:Custom Proton: proton-ge-DAI

Control Layout:Switch To Gamepad With Mouse Trackpad

Control Layout Customization:Right Trackpad

Secondary Launcher Problem:

Needed proton-experimental in desktop mode to get past EA window for the first time. Custom proton needed for controller support.

Input:Controller Detection

fixed with custom proton version

install
force proton-experimental to get past the EA launcher for the first time. You may or may not need to do this one time in desktop mode
install this custom version of proton-ge to get controller support working: https://github.com/cammoore1/DAI-proton-ge-custom. You need to use the tarball method detailed in README. Use the latest tarball in releases, at the time of writing 1.0.4 worked for me. Note that EA launher sometimes breaks with this proton version, in which case you need to start the game with proton-experimental before switching back to this version.
close Steam from system tray in desktop mode and use ProtonUp-Qt to enable the custom version of proton-ge for this game. For me this was necessary, because steam did not detect it in the "Force compatibility" settings drop down menu even when I restarted steam.
change the steam input settings to "Gamepad with mouse trackpads". Edit the layout and set right trackpad click to left mouse click. This is needed because controller support is disabled in the games settings by default.
start the game, go to settings -> controls -> set controls from Mouse and keyboard to Gamepad.

Custom Proton: proton-ge-DAI

Distro:SteamOS Holo

Kernel:5.13.0-valve36-1-neptune

RAM:15 GB

GPU Driver:4.6 (Compatibility Profile) Mesa 22.2.0 (git-17e5312102)

GPU:AMD Custom GPU 0405 (vangogh, LLVM 14.0.6, DRM 3.45, 5.13.0-valve36-1-neptune)