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A new Proton Experimental release hooks up NVAPI for lots of games on Linux

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Proton Experimental has a new release out from September 20th, that as usual fixes some bugs but also does a rather big change in enabling the NVIDIA NVAPI for a long list of games.

Here's the fixes:

  • Fix black texture issues in BeamNG.drive.
  • Fix upsidedown videos in VRChat and many other games.
  • Fix Call of Duty Black Ops II Zombies and Multiplayer hanging on exit.
  • Fix Bail or Jail Demo crashing when opening the Terms of Serivce.

As for the NVAPI being enabled for a lot of games, it means that out of the box with this Proton Experimental release you should be able to access the NVIDIA special features in them like DLSS.

Here's the list of games that now have it enabled by default:

  • Amid Evil
  • Apocalypse: 2.0 Edition
  • The Ascent
  • Assetto Corsa Competizione
  • Back 4 Blood
  • Bright Memory Infinite
  • Bright Memory Infinite Benchmark
  • Chorus
  • Chorus Demo
  • Cions of Vega
  • Cions of Vega Demo
  • Control Ultimate Edition
  • Cyberpunk 2077
  • Death Stranding
  • Deathloop
  • Deep Rock Galactic
  • Deliver Us The Moon
  • Dying Light 2
  • Edge of Eternity
  • Engine Evolution 2022
  • Engine Evolution 2022 Demo
  • Everspace 2
  • Everspace 2 Demo
  • F1 2020
  • Get Stuffed
  • Ghostrunner
  • Ghostrunner Demo
  • God of War
  • Hellblade: Senua's Sacrifice
  • Hitman 3
  • Hitman 3 Free Starter Pack
  • Island of the Ancients
  • Island of the Ancients Demo
  • Iron Conflict
  • Lego Builder's Journey
  • Marvel's Spider-Man Remastered
  • Mechwarrior 5: Mercenaries
  • Mortal Online 2
  • Mount & Blade II: Bannerlord
  • No Man's Sky
  • The Persistence
  • Pluviophile
  • Pumpkin Jack
  • Rise of the Tomb Raider
  • Shadow of the Tomb Raider
  • Soulstice
  • Soulstice Demo
  • Stay in the Light
  • Supraland
  • System Shock Demo
  • The Cycle: Frontier
  • The Elder Scrolls Online
  • The Orville: Interactive Fan Experience
  • The Redress of Mira
  • The Redress of Mira Demo
  • To Hell With It
  • Twin stones: The Journey of Bukka
  • War Thunder
  • Wrench
  • Xuan-Yuan Sword VII

Full changelog can be found here.

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 it from the dropdown.

On a Linux desktop:

  • Right click a game, go to Properties.
  • Compatibility menu on the left.
  • Make sure the tickbox is done, then select Proton Experimental from the dropdown.

If you don't have Proton Experimental installed, it's available in your Steam Library the same as any other game and app.

Article taken from GamingOnLinux.com.
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9 comments

mahagr 21 Sep
Has someone tested what's the current performance difference between a native version and Proton using the same settings?
Eike 21 Sep
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Quoting: mahagrHas someone tested what's the current performance difference between a native version and Proton using the same settings?

This should depend on the game, some settings and maybe even what the graphics driver can support, IMHO.
(But I never tried Proton when there's a native version.)
Dang, Team Green is looking tempting!
deathxxx 21 Sep
What exactly does this om games? NVAPI
Quoting: deathxxxWhat exactly does this om games? NVAPI

I couldn't remember, too. I found this from a previous Liam article:

"NVAPI is NVIDIA Corporation's core software development kit that allows access to NVIDIA GPUs and drivers on all Windows platforms. NVAPI provides support for categories of operations that range beyond the scope of those found in familiar graphics APIs such as DirectX and OpenGL."

https://www.gamingonlinux.com/2021/07/nvidia-puts-out-a-new-release-of-their-open-source-nvapi-interface/
mr-victory 21 Sep
Quoting: deathxxxWhat exactly does this om games? NVAPI
The effect is that you no longer need to use launch parameters to use DLSS, Nvidia Reflex etc. on these games. DXVK spoofs Nvidia GPUs as AMD by default, because otherwise games attempt to use NVAPI and it didn't work out well in the past.
edo 22 Sep
Quoting: mahagrHas someone tested what's the current performance difference between a native version and Proton using the same settings?

yes, proton is better overall
aufkrawall 22 Sep
Quoting: mr-victoryThe effect is that you no longer need to use launch parameters to use DLSS, Nvidia Reflex etc. on these games.
Toggling Reflex without LatencyFlex likely still does nothing, unfortunately.
How do one test enable this for a game?
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