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Valve stealthily put out a Release Candidate for testing the next stable update to Proton for Linux PCs and Steam Deck with Proton 9.0-2. They actually put this up last week on May 24th.

Posted up on the official Proton GitHub, Proton 9.0-2 Release Candidate includes various changes previously in Proton Hotfix and Proton Experimental. Valve are looking for feedback on any issues that happen that were not present in Proton 9.0-1.

Here's the current changes:

  • Now playable:
    • Alpha League
    • Battlezone Gold Edition in VR mode
    • Black Desert Online
    • FreestyleFootball R
    • Helldivers 2
    • Hero's Land
    • Iragon
    • Senua's Saga: Hellblade II
    • SimCity 3000 Unlimited
    • Warlords Battlecry III
  • Enabled controller support via Xalia in the launchers of:
    • Clustertruck
    • Fallout 3 (standard and GOTY edition) - partial support only
    • Fallout 4
    • Mugsters
    • The Elder Scrolls V: Skyrim (72850)
    • The Elder Scrolls V: Skyrim Special Edition
    • Tomb Raider: Anniversary
    • Tomb Raider: Legend
  • Limited number of cores seen by the following games making them playable on a high core count CPUs:
    • Call of Juarez: Gunslinger
    • Command & Conquer and The Covert Operations
  • Fixed Ghost of Tsushima and Horizon Forbidden West displaying a warning about outdated drivers with Nvidia GPUs.
  • Fixed The Finals crashing on launch after a recent game update.
  • Fixed The Finals wrongly detecting button mashing.
  • Fixed The Finals not working on machines supporting AVX512 without clearcpuid=304 in the kernel command line.
  • Fixed Apex Legends not starting after a recent game update.
  • Fixed Tekken 8 reporting wrong connection type if both WiFi and Ethernet are present.
  • Fixed Ubisoft Launcher not starting games with a fresh Proton prefix.
  • Fixed Halo Infinite crashing randomly during "initializing data".
  • Fixed Beat Saber not being playable on Nvidia GPUs without using the legacy branch.
  • Fixed Marvel vs Capcom: Infinite crashing when creating multiplayer lobby.
  • Fixed hosting multiplayer games in Foundry.
  • Fix rendering of Japanese characters in the launcher of Granado Espada Japan.
  • Fixed Nightingale not being able to authenticate with Steam on desktop.
  • Fixed Bloons Monkey City thinking it's offline with IPv6 support disabled.
  • Fixed Ubisoft Launcher asking for serial number on the first launch of Tom Clancy's Ghost Recon: Future Soldier.
  • Fixed Descent 3 not working in GL mode.
  • Fixed Shatterline freezing on loading screen when trying to join a second online match in a session.
  • Fixed Age of Empires II: Definitive Edition crashing when skipping intro videos.
  • Fixed Imperiums: Greek Wars launcher.
  • Fixed Call of Juarez: Bound in Blood failing to launch on a fresh prefix.
  • Fixed audio stutter in Viking: Battle for Asgard.
  • Fixed Swords of Legends Online launcher not being displayed correctly.
  • Fixed Russian language rendering in Brothers: A Tale of Two Sons launcher.
  • Fixed scaling in The Desolate Hope when playing on desktop.
  • Improved controller input support for Tower Princess.
  • Improved performance in We Love Katamari REROLL+ Royal Reverie.
  • Fixed GRIS showing error window when exiting the game.
  • Fixed issues with transparency in Akka Arrh.
  • Fixed load / save dialogs not working in Idle Spiral on Steam Deck.
  • Added raw HID support for VKB Gunfighter SCG.
  • Fixed random crashes in Cosmoteer Starship Architect & Commander.
  • Fixed font rendering in Cosmoteer Starship Architect & Commander on Steam Deck.
  • Improved Chinese font rendering in Cosmoteer Starship Architect & Commander.
  • Fixed Russian and Hebrew font rendering in Simon the Sorcerer: 25th Anniversary Edition.
  • Improved font rendering in Alien Swarm: Reactive Drop on Steam Deck.
  • Updated support for OpenXR to version 1.1.36.
  • Updated OpenVR support to v2.2.3.
  • Updated vkd3d-proton to v2.12-58-gf6d39052afb1.
  • Updated dxvk to v2.3.1-64-g889802887fa5.
  • Updated dxvk-nvapi to v0.7.0-7-gaae4902b6ff7.
  • Updated Wine Mono to version 9.1.0.


Pictured - Black Desert

Currently the post on GitHub has no replies, so I imagine most people missed the Release Candidate as well. So now you've got a weekend of testing ahead of you.

How to test?

Look for Proton 9.0 in your Steam Library, go into the Properties -> Betas and select release-candidate from the drop-down box.

Article taken from GamingOnLinux.com.
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2 comments

fschaupp May 31
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Nice to see VR updates for Linux! Didn't expect that to become a (realistic) thing in 2024!
Enabled controller support via Xalia in the launchers (..)
Interesting project I have not heard of before: https://github.com/madewokherd/xalia
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