New Media Source Megaissue - Proton Experimental

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Living true to its name Proton Experimental will serve as a vehicle to roll out and test a new implementation of media source. While it improves video playback in many games and enables us to fix even more things in the future, the change is substantial and may cause regressions.

We've done extensive internal testing and made the changes available via the bleeding-edge beta branch already. Now it's time to push this experiment even further - into the default Proton Experimental.

In case of regressions in video playback please report them here. There's a beta branch named old-media-source (select Proton Experimental in you Steam Library -> cog icon -> Properties -> Betas -> and select the branch from the beta participation drop-down).

If you face any issues please make sure that they are not present with old-media-source before reporting them here.

Games with fixed or improved video playback:

• Gal*Gun 2
• SOULCALIBUR VI
• Call of Cthulhu
• All-Star Fruit Racing
• Greedfall
• Onimusha: Warlords
• Bloodstained: Ritual of the Night
• Indigo Park: Chapter 1
• Agony Unrated
• TELEFORUM

Known issues:

• Resident Evil 7 videos fail to play.
• Resident Evil Village videos fail to play.
• Quantum Break videos have green flashes and intermittent crashes.
• Shin Megami Tensei III has intermittent video playback failure.

For any affected games please use stable Proton 9.0-3 (the default) or the old-media-source beta branch while we work on fixes.