Unable to play on Deck

[Litneo Spark]

-dev titles video plays
-audio works
-low resolution, looks like ~540p

-set display boundary screen
-no form of input works
-'Aaccept' in bottom left
-broken button prompt next to 'adjust' looks like [_O

-tried using kb/m controller layout template
-game still shows xbox 'A' button prompt
(game recognises input device 👍)

-tried multiple proton / GEproton versions and same behavior results

any ideas? deck software is up to date and have read other users able to play on deck, havent found anyone with my issue but have seen complaints about missing button prompts

thanks

[hackintoshchap]

The game sales page has a note that Mafia £ Definitive Edition is Unsupported on Steam Deck - click on the message for full info. This message is from Steam. not the game developers.

Others are trying to play the game on Steam Deck and are also being unsuccessful:
https://steamcommunity.com/app/360430/discussions/0/3727324491570028337/

[tintingaroo]

Are you using the Deck controls or an external controller?
The Deck controls only work via Steam Input, is that correct?

Looks like you guys are facing similar issues that can be experienced on Windows PC.

What is the default config you get? Layout ID 957521943?
https://steamcommunity.com/sharedfiles/filedetails/?id=2917154319&fileuploadsuccess=1

(In case you didn't know the location & assuming operations are the same:
Mafia III in Library> settings/gear icon > Developer > Clear Selected Controller Layout
Open the controller layout > settings > Layout Details)

See if your inputs register if you change the config to the Gamepad template.

On PC, we have missing button prompts when Steam Input is enabled but the game is not set to the official Steam Input config (or a config based on it).

[Stan]

Not all games Are supported by Steam deck by default. You need to wait that developer adds that support. With this game, i would not get My hopes up too quickly.

[✘GreedoShotFirst✘]

The game is working on my Steam Deck. It plays at native res and lowest settings @ 30fps. I'm using Proton Experimental (bleeding edge).

However, Steam Input API is the steam decks biggest hurdle with this game. It's broken and doesn't recognise the Steam Deck's controls.

I had to Go into the controller config and change it a default Xbox Controller layout. The pre-made one from the developers is broken. The game can be playable after that, however there are no buttom prompts because of Steam Input API (once again breaking another games controller capabilities).