Valve releases SteamOS 3.8 with Steam Machine support and desktop upgrades

Valve launched the stable version of SteamOS 3.8 today following a beta testing period, introducing initial support for the upcoming Steam Machine hardware ^{[1, 2, 3, 4, 5]}. PC Gamer noted, "If you turn your face to the wind and inhale, you can detect the first notes of upcoming hardware," signaling the platform's expansion ^[3].

SteamOS 3.8 updates its Arch Linux base with newer packages to enhance system stability and performance ^{[2, 5]}. A significant change is switching the default Linux display server from X11 to Wayland in Steam Deck's desktop mode ^{[2, 3, 5]}. Wayland reduces performance drops in desktop mode relative to game mode and improves TV scaling, HDR, and variable refresh rate (VRR) support ^{[3, 4, 5]}.

The release also adds preliminary HDMI VRR support and improves VRR frame pacing, aiming to smooth visual output on compatible displays ^{[2, 4, 5]}. Bios updates are included for both Steam Deck LCD and OLED variants, with the OLED model’s charging LED now changing color when the battery reaches a user-set charging limit, such as 80% ^{[3, 4, 5]}.

Controller functionality sees updates as well, including improved Steam Controller compatibility and the ability to wake devices from sleep. Screencasting support in game mode also improves ^{[2, 3, 4, 5]}. Hardware compatibility progresses with better support for recent Intel and AMD processors and improved discrete GPU video memory management ^{[4, 5]}.

Download speeds for updates increase on high-speed internet connections. Valve fixed bugs affecting games, WiFi stability, USB device support, Bluetooth wakeup, audio, and Steam Deck firmware updates ^{[4, 5]}.

Rock Paper Shotgun described the update as paving "the way for Steam Machine with a bunch of new display features and faster patches" ^[4]. However, SteamOS 3.8 does not include new information or updates about the Steam Frame VR device ^{[3, 4, 5]}.

Today’s launch marks a clear step in Valve’s plans with SteamOS and hardware expansion. Further updates will likely continue to refine Steam Machine support and desktop experience.