Steam Deck - SteamOS 3.5.1 Preview Update: October 12th - Steam News
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Note: This update is for the Steam Deck Preview channel, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel. General Fixed a case where an SD card with filesystem errors would be mounted as read-only. Fixed the custom performance overlay presets file inheriting the default settings from the steam presets. Fixed internal display rotation being erroneously reported to the game.

Note: This update is for the Steam Deck Preview channel, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.

General

  • Fixed a case where an SD card with filesystem errors would be mounted as read-only.
  • Fixed the custom performance overlay presets file inheriting the default settings from the steam presets.
  • Fixed internal display rotation being erroneously reported to the game.

Firmware 118

  • Actually added undervolting controls.

External display

  • Fixed a 3.5 regression with HDMI output.
  • Fixed a long-standing issue where the internal display backlight would always stay on.
  • Fixed bug with HDR applications showing in wrong colorspace if they moved their window during swapchain creation.
  • Fixed HDR not working in 32-bit applications.
  • Added HDR Analysis to developer settings.
  • Disabled HDR exposure in “My Little Pony: A Maretime Bay Adventure” as it enables it without rendering in HDR.

Desktop Mode

  • Fixed a case where the desktop could be empty and apps would fail to launch.
  • Fixed a bug where switching to the Plasma Desktop transition could result in broken colors.