Hi all, I installed GTA 4 Complete Edition from Steam. The first time I tried playing after installation it worked flawlessly but has been giving me this error ever since. I have tried uninstalling and reinstalling and I have tried using a different Proton version only to get the same error again. I am on Linux Mint 21.3 Cinnamon with 13th Gen i7-3700K, RTX3080 Ti and 32 GB RAM. I haven’t been able to find any help on Proton DB, hoping somebody here might have some idea. And I apologize if this is no the right place for this post, please let me know where I should post it. Thanks!

  • Ghoelian
    7•5 months ago

    You might need to install ProtonUp-QT and grab GE-Proton and set the game compatibility mode to “Proton Experimental”

    If you’re installing proton ge, you should set compatibility mode to proton ge. Proton experimental is Valve’s experimental version of proton, not GE.

    • @breadsmasherEnglish
      2•5 months ago

      Not doubting you - I thought experimental referred an additional compat layer you select via Proton UP?

      • Ghoelian
        1•5 months ago

        I believe the experimental option is always there in steam, even if you’ve never used proton up. It just contains experimental features that valve hasn’t put into a regular release yet.

      • @TrickDacy
        1•5 months ago

        Nope. Experimental is just one version of proton. The latest one. GE would be a completely separate version you’d need to explicitly select

        • @breadsmasherEnglish
          1•5 months ago

          Thanks! I will have to look at my steamdeck - I guess I have misconfigured something

          • @TrickDacy
            1•5 months ago

            I don’t know about steam deck specifically but I do know that on desktop for many years the UI has had a drop-down with various proton versions, and experimental is one option alongside the others.

            • @breadsmasherEnglish
              1•5 months ago

              Checked - the steam UI for it is identical. GE-Proton didn’t show up immediately when I originally chose Experimental

              • @TrickDacy
                1•5 months ago

                That’s because GE is a separate version you have to install manually. I’m not sure what you’re saying here, but it’s definitely the case that the “experimental” version is just valve’s latest proton version, entirely separate from earlier major versions and GE. It’s called experimental because it’s the cutting edge version that is less stable because they’re constantly updating it

                • @breadsmasherEnglish
                  2•5 months ago

                  Sorry I am just agreeing with you - when I went to check, I was confirming

                  1. the steamdeck UI compatibility is the same as desktop steam
                  2. When I initially selected proton version after installing GE-Proton, the option wasn’t immediately available. I incorrectly then assumed Proton Experimental was what I wanted. After you corrected me, I went back to the compatibility window, GE-Proton was there as an option separate to Experimental. I just didn’t give it time to appear the first time I set it up.

                  TLDR - You are 100% correct, I was just following up to confirm this plus just to say the UI is the same across Deck + Desktop

                  • @TrickDacy
                    1•5 months ago

                    Gotcha. Thanks. Yeah the first time I installed GE I expected steam to be smart enough to find it immediately. I think all I had to do was restart it though