Valve quick to address Steam Deck Client update that introduced nasty bug

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The latest update to the Steam Deck Client was released on April 1st. Though it did bring in some bug fixes and performance improvements, it also introduced a glitch regarding the TDP Limiting feature, which is causing issues for several users.
After the new Steam Deck Client update went live, reports began to trickle in on GitHub and social media that some sections of the Quick Access menu were no longer functioning correctly. One of the most notable faults was the TDP Limiter not working.
Handheld specialist publication Steam Deck HQ tested the new update and confirmed that the TDP Limiter was not working on the staff Steam Decks. The slider is set to ‘0 Watts' and cannot be changed. Other parts of the menu, such as the GPU Clock Speed Frequency limiter, were still working as normal, though other users have reported problems with this setting as well.
TDP limiter is a valuable tool – luckily, Valve has already fixed it
This update was rereleased on April 1st to fix the following issues:
Source: Steam Community patch notes
- Fixed display issue on game details page for games with queued updates.
- Fixed TDP and GPU clock performance settings not working.
- Fixed crash loop at startup when Wifi Debug Mode setting is enabled.
The TDP Limiter is a function that lets Steam Deck users set the power consumption of the Steam Deck. By setting this to a lower value, users are able to improve battery life and reduce heat and fan noise. This setting is very valuable to Steam Deck users who like to enjoy their devices during a long commute or any time they are far away from a power outlet.
Some Steam Deck owners noticed that some scaling filter options had been removed. In fact, most of these have simply been renamed, and the functionality can be found elsewhere. Either way, a hotfix has rolled through, and the TDP and GPU clock settings are back to normal; the latest Beta Client Update on April 2nd also addresses these issues.