The preview version of SteamOS 3.5 has been released for Steam Deck. To try it out, follow these steps: go to Settings > System > System Update Channel and set the channel to Preview. However, please be aware that many report that this version may render the SD card non-writable, which could cause issues with programs like Emudeck and others that require writing to the SD card.

What has changed?

Steam has released a list of improvements in this new version of the operating system, including:

The default color rendering has been adjusted to emulate the sRGB color gamut, resulting in a warmer color tone. This eliminates the need for dedicated plugins to achieve a vibrant and warm screen effect.

You can now change color settings from the Settings, with an instant preview display to see the result. This preview is available even during gameplay. If you want to see how the color tone looked before the update, there is the "Native" option.

HDR can now be enabled if the external display supports it.

External storage devices are now automatically mounted.

The sleep and resume function has been slightly improved in terms of speed.

From a performance perspective, a problem that affected consoles when running emulated or very old games that did not support a feature called SMT (Simultaneous Multithreading) has been resolved. This feature allows a single core to handle two threads, usually improving performance when playing modern games. The problem was related to a specific behavior in the Linux kernel on AMD hardware but has been fixed with a kernel update.

A new graphics driver has been added to Steam OS 3.5. In general, there are improvements related to VRR (Variable Rate Refresh), which can be enabled from the screen settings if supported by the USB-C adapter. Screen resolutions can now be alternated between Zoom and Stretch for better image adjustment on devices. Several annoying issues have been resolved, including touchscreen orientation when connecting to external devices.

Lastly, various updates have been made to the devices, with a particular focus on Bluetooth stability and improved support for numerous devices.

Steam Deck’s Biggest Update is Finally Here


Steam Deck - STARFIELD - Steam OS 3.4 vs Steam OS 3.5 Comparison


For further details, you can visit the website: Steam Powered News

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