SteamOS 3.9.2 Beta brings fixes for VRR, VR Streaming, Remote Play, Boot Time and more

New in SteamOS 3.9.2 (Beta)

General

• Add preliminary support for Legion Go 2 brightness control.
• Fixed Steam Remote Play not working on Steam Machine when booting with no external display connected.
• Fixed "Disable Frame Limiter" toggle not working when VRR is enabled.
• Fixed the frame limiter incorrectly applying to VR titles when streaming from Steam Machine to Steam Frame.
• Fixed loss of input if a launcher window is accidentally dragged around in Game Mode.
• Fixed logging in to Desktop Mode via RDP with system users when enabled.
• Fixed an issue causing certain games (incl. ELDEN RING and DARK SOULS™ III) to fail to run on recent Panther Lake Intel CPUs.
• Worked around a firmware issue on some ASUS devices causing excessive fan speed upon waking from sleep.
• Fixed a bug causing hidden WiFi networks to fail to connect on the first attempt.
• Fixed boot screen corruption on Intel PTL+ devices.
• Fixed a regression from previous 3.9 previews causing Steam Machine to occasionally wake from hibernation unexpectedly.
• Fixed a regression from previous 3.9 previews slowing down system boot speed and causing the boot logo to briefly vanish during boot.
• Fixed a regression from previous 3.9 previews breaking virtual keyboard input for some languages in Game Mode.
• Fixed a regression from previous 3.9 previews with nested desktop mode.
• Security and stability fixes.

SteamOS 3.9 (previously in Preview)

General

• Updated Arch Linux base.
• Updated Desktop Mode from Plasma 6.4.3 to Plasma 6.7.3
  • For more information, see
    https://kde.org/announcements/plasma/6/6.7.0/
    https://kde.org/announcements/plasma/6/6.6.0/
    https://kde.org/announcements/plasma/6/6.5.0/
• Fixed a system crash when launching Forza Horizon 6 on Legion Go 2.
• Fixed an issue causing frame limits to result in lower than intended FPS on certain external displays.
• Fixed issues with suspend/resume on systems with RDNA1 or RDNA2 based dedicated GPUs.
• Security and stability updates.

Misc

• Updated the bootloader to improve compatibility with certain motherboards.
• The Desktop Mode lockscreen is no longer prevented from being explicitly enabled in settings (but remains off by default).

Developer

• Switched WiFi backend to wpa_supplicant by default for new installations, improving compatibility with various WiFi networks
  • Enhanced wpa_supplicant to support fast WiFi reconnect on resume from sleep, previously only available in the iwd backend.
  • Known issue: Existing installations will continue to use iwd unless manually enabled in Developer Settings.
• Linux kernel rebased on Linux 7.2.
• Added preliminary support for hibernation, not yet exposed in Game Mode UI
  • Enhanced Linux kernel hibernation support to enable interrupting hibernate requests and fixed various driver issues.
• Various scripts and packages have been renamed from `steamos-` to `holo-`, with aliases to the former names where appropriate.
• Improved support for running SteamOS as a VM guest with accelerated graphics (virtio-gpu, venus).
• Updated included renderdoc version.