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Valve released two separate Proton upgrades recently with Proton Hotfix and Proton Experimental both seeing releases. Here's what's new for Steam Deck and desktop Linux gaming.

Firstly, Proton Hotfix was updated for the TEKKEN 8 Closed Beta, so that online matches should now work on Steam Deck. Valve developer Pierre-Loup Griffais mentioned it should be automatically selected for it now if you restart.

On top of that Proton Experimental saw an update on October 20th with Burnout Paradise Remastered mentioned as a newly playable game plus these fixes:

  • Fixed Mighty Switch Force! Collection crashing when no controllers are plugged in.
  • Fixed Forza Horizon 5 not working after a recent game update.
  • Support Virpil Constellation ALPHA-R and VKB Gladiator NXT EVO controllers when hidraw is accessible.
  • Fixed Cyberpunk 2077 crashing with DualSense plugged in after a recent game update.
  • Fixed fonts not rendering in the main menu of Aveyond 4: Shadow of the Mist.
  • Fixed Old School Runescape and other games on systems with 128+ virtual cores.

Changelog can be seen here.


The Proton updates will show up in your Steam Downloads, as Proton updates just like games do, so keep an eye out for it. Want more info about Steam Play and Proton? Check out my beginner's guide.

How to change your Proton version:

Steam Deck:

  • Pick a game in your Library 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.

Let me know what you think in the comments.

Article taken from GamingOnLinux.com.
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I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly came back to check on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly. Find me on Mastodon.
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6 comments

Pecisk Oct 21, 2023
"Fixed Old School Runescape and other games on systems with 128+ virtual cores."

Hahaha, what. This sounds so strange bug that I have to know what weirdness this causes and how you can have so many cores.
Calinou Oct 21, 2023
Quoting: Pecisk"Fixed Old School Runescape and other games on systems with 128+ virtual cores."

Hahaha, what. This sounds so strange bug that I have to know what weirdness this causes and how you can have so many cores.

There's an xkcd for it™:




Last edited by Calinou on 21 October 2023 at 11:36 am UTC
kaiman Oct 21, 2023
Quoting: Pecisk"Fixed Old School Runescape and other games on systems with 128+ virtual cores."
Sounds like somewhere some Admin is really bored while sitting in their Datacenter :-D.
Lofty Oct 21, 2023
Quoting: kaiman
Quoting: Pecisk"Fixed Old School Runescape and other games on systems with 128+ virtual cores."
Sounds like somewhere some Admin is really bored while sitting in their Datacenter :-D.

or maybe this is a hint towards valve offering a streaming service from said data center,

perhaps for older simpler games.
elmapul Oct 21, 2023
Quoting: Calinou
Quoting: Pecisk"Fixed Old School Runescape and other games on systems with 128+ virtual cores."

Hahaha, what. This sounds so strange bug that I have to know what weirdness this causes and how you can have so many cores.

There's an xkcd for it™:


i knew it was that one before i clicked to load it.
xkcd indeed has an comic for every situation
writequit Oct 21, 2023
Quoting: Lofty
Quoting: kaiman
Quoting: Pecisk"Fixed Old School Runescape and other games on systems with 128+ virtual cores."
Sounds like somewhere some Admin is really bored while sitting in their Datacenter :-D.

or maybe this is a hint towards valve offering a streaming service from said data center,

perhaps for older simpler games.

Isn't it obvious? Steamdeck 2 will have 128 cores!
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