New Steam Deck update arrives and HDR is “no longer forced” on external displays, among other fixes

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A new Steam Deck Beta Client update was pushed yesterday (February 5) and brings some neat fixes along with new controller support. The major highlight is that HDR will no longer be forced on when connected to external displays.
This issue specifically affected Steam Deck OLED users, where the handheld would force the docked output to HDR even if the setting was disabled on the TV, without offering an option to turn it off. However, finally, a setting has been added, allowing users to enable or disable HDR on external displays as they prefer.
Steam Deck Beta Client update for February 5th
A few other highlights include an improvement for Desktop Mode, where display brightness is now better preserved when switching from Game Mode to Desktop Mode. Additionally, support has been added for the Zuiki Mascon controllers, which for those unaware are Nintendo-licensed, one-handle controllers designed to simulate the driving experience of a real train. There are a few more changes, such as Mode Shifts can now be activated using multiple buttons, so be sure to check out the full patch notes below.
General
- HDR is no longer forced active on external displays (Steam Deck OLED)
- HDR on external displays can be persistently enabled / disabled (per display, via Display -> Advanced -> Enable HDR)
Desktop Mode
- Improved preservation of display brightness when transitioning to desktop mode.
Steam Input
Source: Steam
- Added support for the Zuiki Mascon controllers for Nintendo Switch
- Fixed a case where controllers would be in the guide button chord config after disconnecting with the button held
- Fixed a case where the virtual menu screen in the configurator would stop displaying other settings after changing a binding
- Fixed some issues when using “Gyro to …” modes with controllers with high gyroscope polling rates
- Added support to allow Mode Shifts to be activated using multiple buttons
- Fixed SteamController receiving random haptic events when playing No Man’s Sky
If you haven't already, the update can be downloaded in the System Settings on the Steam Deck, just make sure your update channel is set to Beta or Preview.