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Proton Experimental sees new fixes for DEATHLOOP, Forza Horizon 5

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Valve has put out another small upgrade to Proton Experimental, with it focused on improving a couple of popular games. What is Proton? It's a compatibility layer designed to run Windows games from Steam on Linux. See more about it in our full guide.

The release that went up on December 20 fixed up the Xbox login window behaviour for Forza Horizon 5, worked around a bunch of graphical glitching in DEATHLOOP and also fixed Mount & Blade II: Bannerlord occasionally getting stuck in a loop displaying errors.

Not only that though, this release should also speed up the "wind-down" of Proton after you exit a game. So that should make the whole experience a fair bit smoother. Update: an additional fix was added on December 21 to "Fix the new Rockstar Launcher crashing".

See the Proton Experimental changelog to see all the current differences to the normal Proton releases.

Need to know how to actually use Proton Experimental? Here's a simple HOWTO (as it's not complicated!). Make sure it's installed by searching for it in your Steam Library, then select it from the Compatibility menu in the Properties section of a game. See our quick video below:

For an explainer in text form:

  1. Search for Proton Experimental and install if not already.
  2. Right click any game on Steam and go to Properties.
  3. Select the Compatibility menu on the right side.
  4. Ensure the "Force the use of a specific Steam Play compatibility tool" is ticked.
  5. From the dropdown box that appears select Proton Experimental.
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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7 comments

rustybroomhandle Dec 21, 2021
Just note that if you are on Nvidia, don't go rushing out to buy Forza Horizon 5. You'd be in for a very frustrating time. Crashes frequently, and I'm not talking about the cars.


Last edited by rustybroomhandle on 21 December 2021 at 5:06 pm UTC
vipor29 Dec 21, 2021
Quoting: rustybroomhandleJust note that if you are on Nvidia, don't go rushing out to buy Forza Horizon 5. You'd be in for a very frustrating time. Crashes frequently, and I'm not talking about the cars.

yep i hit the refund on that real quick when it was doing that. this is why i need to get ahold of a amd card.im on a gtx 770 right now and could use my radeon 360 but i would take a major performance hit if i did that.im thinking about getting ahold of a 390x seeing anything newer your gonna be paying crazy prices.
Liam Dawe Dec 21, 2021
Update: an additional fix was added today to "Fix the new Rockstar Launcher crashing".
melkemind Dec 22, 2021
It's interesting that they have a fix for audio in Mass Effect Legendary Edition. I've never even been able to get that game to launch.
Gryxx Dec 22, 2021
Quoting: melkemindIt's interesting that they have a fix for audio in Mass Effect Legendary Edition. I've never even been able to get that game to launch.
I have played the whole game on Proton GE. No luck on normal one.
14 Dec 25, 2021
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I halfway wish they didn't fix Forza Horizon 5 at all because then I want to buy it.
based Jan 2, 2022
First they gotta fix Forza Horizon 4, cause that's just as unplayable :(
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