Valve just dropped one of its biggest SteamOS updates in a while, and if you've been waiting for the OS to actually work well on hardware you didn't buy from Valve, this one's worth paying attention to.
SteamOS 3.8.0 Preview has landed, and the patch notes detail a wide range of changes that touch nearly every corner of the OS. From initial Steam Machine support to dramatically reduced controller input latency, this is a lot.
Steam Machine Gets Its First Foothold in SteamOS
The headline addition is initial support for the upcoming Steam Machine, Valve's living room gaming box. The device is confirmed to ship with a Zen 4 CPU and a semi-custom RDNA 3 GPU, meaning it uses a discrete GPU rather than the integrated graphics found in the Steam Deck. That distinction matters, because this update also brings "greatly improved video memory management with discrete GPU platforms" alongside "improved compatibility with recent Intel and AMD platforms." Both of those changes are clearly building toward a stable foundation for the Steam Machine before it ships.
No price or release date for the Steam Machine has been confirmed yet, but Valve has previously recommitted to a 2026 launch window.
A Long List of Third-Party Handheld Fixes
Here's the thing: the Steam Machine stuff is exciting, but the sheer volume of third-party handheld improvements in this update is what really stands out. Valve has been steadily expanding SteamOS beyond the Steam Deck, and 3.8.0 makes that push more concrete than ever.
Some of the most notable additions and fixes include:
- Power button short and long presses now supported across a wide variety of devices
- Added controller, TDP control, and speaker audio support for the ASUS ROG Xbox Ally series
- Added controller support for the OneXPlayer X1 series and Lenovo Legion Go 2
- Added system and controller firmware update support for the Lenovo Legion Go 2
- Preliminary charge limiting support for Legion Go, Legion Go S, and Legion Go 2 (currently Desktop Mode only)
- Controller RGB LED color settings added for the Lenovo Legion Go 2
- Improved controller support for OneXPlayer F1 series, GPD Win 5, GPD Win Mini, Anbernic Win600, OrangePi NEO, and Lenovo Legion Go
- Reduced handheld controller input latency from 5-8ms down to 100-500 microseconds
- Fixed washed out colors for Zotac and OneXPlayer handhelds with OLED displays
- SD card reliability improvements for ASUS ROG Xbox Ally, Legion Go 1, Legion Go S, Legion Go 2, and MSI Claw
- Automatically handles internally rotated displays for some third-party handhelds
- Night mode, color vibrance, and color temperature sliders now work on Z2E and later AMD APUs
That input latency reduction alone is significant. Dropping from 5-8ms to 100-500 microseconds is a substantial improvement for anyone who's felt the controls on a non-Deck handheld running SteamOS feel slightly off.
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Charge limiting support for Legion Go, Legion Go S, and Legion Go 2 is currently only accessible in Desktop Mode, not Gaming Mode.
Wayland Is Now the Default
Beyond hardware compatibility, SteamOS 3.8.0 makes the switch to Wayland as the default display protocol, replacing the older X11 standard. Wayland handles how applications interact with the display, and it's been gradually replacing X11 across Linux distributions for years. The switch brings practical benefits: KDE Plasma, SteamOS's default desktop environment, is also being updated to support Wayland, adding HDR and VRR support on external displays, per-display scaling, and proper rotated display handling.
For most users this will be invisible, but it lays the groundwork for better display support across the board, especially on handhelds with non-standard screen orientations.
What This Means for the Broader SteamOS Ecosystem
Two things have historically made loading SteamOS onto a Windows handheld a frustrating experience: screen rotation and audio drivers. This update addresses both, at least partially, with automatic rotation handling for some third-party devices and improved audio support for the ROG Xbox Ally series.
SteamOS still isn't a guaranteed perfect fit for every device, and alternatives like Bazzite remain strong options for anyone wanting a more flexible Linux gaming experience. But 3.8.0 is the clearest signal yet that Valve is serious about SteamOS running well on hardware beyond its own products, which makes sense given the Steam Machine's imminent arrival. Make sure to check out more:
