Valve Shares New Steam Deck Details, Proton Update Available For Testing

Written by Michael Larabel in Valve on 12 November 2021 at 06:13 PM EST. 34 Comments
Valve today hosted the much anticipated Steam Deck Development Livestream where they and their partners at AMD talked more about the forthcoming Steam Deck's hardware and software.

The recording from the livestream is embedded below for those interested, but some of the key takeaways from today's developer-focused Steam Deck event included:

- Steam Deck will use an immutable root file-system, albeit can be changed for developers/enthusiasts wanting more control over the system state. The immutable root file-system approach is similar to the likes of Fedora Silverblue.

- SteamOS 3.0 will be generally available in due course for those wanting to run the Arch-based Linux distribution on other hardware.

- SteamOS 3.0 is making use of PipeWire.

- Flatpak'ed apps will be supported.

- At least initially the Steam Deck is now making use of a global frame limiter but initially is being left up to the individual games to handle. We'll see how quickly such functionality or so is built into Gamescope.

- The AMD SoC powering the Steam Deck is codenamed "Aerith" and as previously reported is a quad-core Zen 2 design with RDNA2 graphics. The TDP range for Aerith is 4 to 15 Watts. The Steam Deck should support up to two 4K screens at 60Hz via the USB3/DP 1.4 DSC interface.

In case you missed it from yesterday, Valve also published some new documentation for the Steam Deck including a recommendation of using Arch-based Manjaro Linux until their own Arch-based SteamOS is available.

Also today, Valve released a new Proton release candidate for testing. Proton 6.3-8 RC fixes a number of Windows game issues, including support for select BattlEye games, improved CEG DRM compatibility, DLSS in DX11/DX12 games, supporting the latest Steamworks SDK, and a wide variety of different fixes. Among the games tested to now be playable with this Proton 6.3-8 RC are Age of Empires 4, Assassin's Creed, Call of Duty: Black Ops II, DEATHLOOP, Eve Online, Mafia II, The Riftbreaker, and others.
Related News
About The Author
Michael Larabel

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

Popular News This Week