Nvidia’s DLSS has come to Linux gaming (but not the Steam Deck, of course)

Years after the failed Steam Machines, Valve is slowly but surely improving the state of Linux gaming. The company’s upcoming Steam Deck handheld will run on top of Linux, and its Proton compatibility layer will allow it — and other computers — to play Windows games, too. Now, Valve has officially added support for Nvidia’s DLSS machine learning temporal scaling technique for Proton, potentially delivering big FPS boosts and less flickering in games that support the technology.

as Phoronix reports (through Tom’s hardware), Proton 6.3-8 is the first stable release to include support for DLSS, after the feature reached experimental builds before in October, although it seems like you still need to set PROTON_ENABLE_NVAPI=1 and dxgi.nvapiHack = False to turn it on. DLSS won’t be coming to the AMD-powered Steam Deck, of course, as it requires proprietary Nvidia machine learning silicon, but we learned recently that the Steam Deck will support AMD’s arguably much less capable FSR.

The new version of Proton also claims to support a host of additional Windows games on Linux in general, including the celebrated death loop, Age of Empires 4, and both Marvel’s Guardians of the Galaxy and Legendary Mass Effect Edition (although apparently those last two have limitations that are still being worked out).

And Valve says 6.3-8 is the release that includes “support for a first set of BattlEye games,” referring to the BattlEye anti-cheat software that may or may not stop some of the most popular Steam games from playing well. to work multiplayer on the Steam Deck and Linux in general. (The ball is certainly in the developers court.)

You can find the full changelog here on Valve’s GitHub. Nvidia originally announced it would partner with Valve in June to bring DLSS to Linux.