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Another fresh small update to Proton Experimental has landed on March 22nd, here's what's new and changed for Steam Deck and Linux desktop.

From the release notes:

  • Fix graphical issues in Call of Duty: Black Ops III while playing videos
  • Fix PooShooter: Toilet Invaders starting to a black screen.

This should mean that Call of Duty: Black Ops III is truly click and play now for Steam Deck and Linux desktop — awesome!

I'll admit I had to look up that second one, it is a real game and someone working for Valve had to fix an issue for it, kind of hilarious. While funny, it's also a good example of how often Valve doesn't just focus on the biggest names in gaming to get them working in Proton. Bugs in one game, even a small game, can affect others.

Changelog can be found here.

For an explanation of all the different Proton versions see my original guide on Proton. Proton Experimental gets automatically installed if Valve set it on a game, or you can just search for Proton Experimental in your Steam Library (not the Steam Store) to install it. 

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

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Text guide

Change it per game (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 Proton Experimental from the dropdown.

On a Linux desktop:

  • Right click a game, go to Properties.
  • Compatibility on the left.
  • Make sure the tickbox is done, then select Proton Experimental 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 checked 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. You can also follow my personal adventures on Bluesky.
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6 comments

StalePopcorn Mar 23, 2023
Now I wish the only few matches that could be found didn't have cheaters plaguing them. It's, unfortunately, a better experience with bots IMHO.
Xetal Mar 23, 2023
Hopefully Proton 8 will come at eastern
Lofty Mar 23, 2023
Fix PooShooter: Toilet Invaders starting to a black screen.
You could say the game shat itself.

Disappointed it wasn't a brown screen.
StoneColdSpider Mar 23, 2023
Proton Experimental fixes up Call of Duty: Black Ops III videos
They were so busy fixing Call of Duty: Black Ops III that they didnt stop to ask...... If they SHOULD fix Call of Duty: Black Ops III......


Last edited by StoneColdSpider on 23 March 2023 at 9:36 pm UTC
whizse Mar 23, 2023
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Aren't both of these games Call of Doody?
Pengling Mar 23, 2023
Aren't both of these games Call of Doody?
I bet you really gotta watch where you step in a game called Hero's Call of Doody!
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