I’ve been experiencing similar issues with my Studio Display. I’ve owned the Studio Display since its release, and it worked perfectly fine until recently when the fan problems started. The fans are loud enough to be heard across the room and usually don’t stop unless the Studio Display is disconnected. Additionally, the brightness suddenly drops significantly right before the fans kick in.
I’ve done extensive troubleshooting on both the software and hardware level with no success. My Studio Display has been stationary on the very same spot since purchase.
At its current state the Studio Display is unusable, and what really concerns me is that the fans sometimes start running at full speed even when the Studio Display is not connected to a Mac or when the connected Mac is turned off. It no longer feels safe keeping the Studio Display plugged into wall power when I’m not nearby.
I already brought it to Apple once, where they performed a “Software Revival”, which did not resolve the issue. I’ve now left the Studio Display with Apple for a second time for hopefully a more thorough investigation. I was told this could take up to two weeks.
@mlopez14, curious to hear if you’ve gotten any more clarity on the issue or found any solution?