Apple confirms Studio Display speaker fault, offers workaround
An unknown number of Studio Display owners are having issues with sound failing intermittently, or completely, which Apple now says is a software problem.

Apple previously said that initial webcam issues with the Studio Display were a software rather than a hardware problem, and promised a fix. This time, while again insisting that it is not a fault with the display's speakers, Apple has so far only offered a temporary workaround.
In a note to authorized repair and service centers, Apple recommends that users should unplug the Studio Display from power. Then they should also disconnect any other accessories connected to the display, wait ten seconds, and finally plug the display back in.
The note, first seen by MacRumors, reportedly also hints that a future iOS update will properly fix the issue.
Some users have been reporting issues since May 2022. It's not known how many people are affected, but anecdotal evidence suggests that the problem is becoming more widespread.
Read on AppleInsider

Apple previously said that initial webcam issues with the Studio Display were a software rather than a hardware problem, and promised a fix. This time, while again insisting that it is not a fault with the display's speakers, Apple has so far only offered a temporary workaround.
In a note to authorized repair and service centers, Apple recommends that users should unplug the Studio Display from power. Then they should also disconnect any other accessories connected to the display, wait ten seconds, and finally plug the display back in.
The note, first seen by MacRumors, reportedly also hints that a future iOS update will properly fix the issue.
Some users have been reporting issues since May 2022. It's not known how many people are affected, but anecdotal evidence suggests that the problem is becoming more widespread.
Read on AppleInsider
Comments
My Macs start becoming wonky after about 45+ days without a full restart (a sleep/wake cycle is inadequate) … so since the Studio Display is essentially now a computer with its own operating system, I wish Apple would program the Studio Display to reboot automatically every so often. Perhaps once per week, a certain number of hours after it went to sleep? This might keep its OS happy without much chance of interrupting actual use (presuming, of course, that it isn't in 24/7 use by its owner).
in my book, the Studio Display is a hard foul tip out, while the Mac Studio is a home run. Hopefully Apple will correct this - and even offer a humble apology - with the up coming iMac Studio Pro, AND offer the Studio Display with the same mini-LED tech.
I have a four place power strip with on/off switch that will be plugged into my backup power supply in lieu of the two individual monitor power cords Reseting the power will be much easier.. Darn shame we have to do that, but the A series computer needs to be powered on and off to clear its memory and caches.
We are back to the reseting power solution we had to deal with using the very early PCs in the 80s when the got stuck..
www.youtube.com/watch?v=t2F1rFmyQmY