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Valve has updated Proton Experimental for Steam Deck and Linux desktop with a few quick fixes so here's the usual run over what's new.

The release today gets The Witcher 3: Wild Hunt working again and, while it doesn't say it, this is specifically for the DirectX 12 mode from the new update that previously required Proton Hotfix (now you can just use Experimental). As DirectX 11 already worked.

Additional changes include:

  • Improved support for steering wheels.
  • Fix regression with Mortal Combat X performance.
  • Fix OpenGL launch option for Youropa.

Changelog available here. As a reminder (for desktop), you need Mesa 22 / Nvidia drivers 510.47 or newer for Proton Experimental. Steam Deck is fine.

Need to know how to change the Proton version used? See the below video:

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Text guide (Steam Deck):

  • Pick a game and head to the little cog icon on the right.
  • Click Properties, then Compatibility on the left.
  • Make sure the tickbox is done, then select Proton Experimental from the dropdown.

On a Linux desktop:

  • Right click a game, go to Properties.
  • Compatibility on the left.
  • Make sure the tickbox is done, then select Proton Experimental from the dropdown.
Article taken from GamingOnLinux.com.
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7 comments

ljrk 21 Dec, 2022
Also note that you can use

 
--launcher-skip


in Witcher 3 to skip the annoying launcher :-)
mt 21 Dec, 2022
I like to imagine the combination of those 2 points in the title.

Witcher 3 steering wheel run speedrun any% category when?
chickenb00 21 Dec, 2022
Great news thanks!
Rouhollah 23 Dec, 2022
Quoting: ljrkAlso note that you can use

 
--launcher-skip


in Witcher 3 to skip the annoying launcher :-)
Hey, thank you for the tip.
Can I ask where I could find different launch options for games? Do developers release documentation or something?
ljrk 23 Dec, 2022
Quoting: Rouhollah
Quoting: ljrkAlso note that you can use

 
--launcher-skip


in Witcher 3 to skip the annoying launcher :-)
Hey, thank you for the tip.
Can I ask where I could find different launch options for games? Do developers release documentation or something?

I don't know any official documentation unfortunately. In this case, I simply found it mentioned on protondb.

Generally, you can launch the game and figure out if the launcher is a separate exe file. Then you can use the "strings" binary to extract all byte sequences containing human readable characters which likely includes all command line options. You may filter for prefixes such as -, -- or / in order to get a shorter list to work through.
tuubi 23 Dec, 2022
Quoting: Rouhollah
Quoting: ljrkAlso note that you can use

 
--launcher-skip


in Witcher 3 to skip the annoying launcher :-)
Hey, thank you for the tip.
Can I ask where I could find different launch options for games? Do developers release documentation or something?

I think pcgamingwiki.com might be your best bet.
kokoko3k 25 Dec, 2022
Really great to see more and more software (games) fixed.
For a mome t i imagimed okaying the witchet with a steering wheel, ahah.
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