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Proton Experimental has a now update available as of December 1st, so here's a run over what's new in the latest build for Linux desktop and Steam Deck. This is the special testing version of Proton from Valve, that you can manually swap over to that includes the latest changes before they roll out to the main version of Proton.

Now playable is 雀姬 (Mahjong ladies) along with these fixes:

  • Fix Zeepkist freezing when using controller.
  • Fix Microsoft Flight Simulator crashing during longer flights.
  • Fix Vampire Survivors crashing on SteamOS 3.4.
  • Enable hidraw for simucube racing wheels and Fanatec pedals.
  • Fix Sackboy: A Big Adventure failing to start the first time it's launched.
  • Fix Marvel Snap not being able to connect to online services.
  • Fix video playback speed/stutter in METAL GEAR SOLID V: THE PHANTOM PAIN.
  • Fix Halo Infinite intro video playing in a wrong language.

Changelog can be seen here.

Need to know how to change the Proton version used? See the below video:

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How to swap to Proton Experimental:

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.

Linux Desktop

  • Right click a game, go to Properties.
  • Compatibility on the left.
  • Make sure the tickbox is done, then select it from the dropdown.
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.
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7 comments

ving2004 2 Dec, 2022
I hope one day Forza 4 works properly.
ShadMessa 2 Dec, 2022
Quoting: ving2004I hope one day Forza 4 works properly.
I was going to buy that what's wrong with it ?
TNTwise 2 Dec, 2022
Quoting: ving2004I hope one day Forza 4 works properly.
Forza horizon 4 works perfectly fine on 6.3-8 with xorg (Nvidia or AMD)
Mashard4 2 Dec, 2022
I can finally give my phone a break now that Snap works on Linux.
Since several version ago, I have a regression with Proton Experimental with games that use mp4 files like Back4Blood or Borderlands 3..
Ben 2 Dec, 2022
Quoting: Comandante ÑoñardoSince several version ago, I have a regression with Proton Experimental with games that use mp4 files like Back4Blood or Borderlands 3..

Proton is missing proprietary video codecs. Use proton-ge-custom instead which is built with this codecsupport. Should run fine with it.
Quoting: Ben
Quoting: Comandante ÑoñardoSince several version ago, I have a regression with Proton Experimental with games that use mp4 files like Back4Blood or Borderlands 3..

Proton is missing proprietary video codecs. Use proton-ge-custom instead which is built with this codecsupport. Should run fine with it.

With PROTON NEXT (7.0-5), it works fine... SO it must be something bad with the experimental build.
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