Alas, just shipped the new XDR back to Apple. Had a problem with the video presets. When starting up the display fresh, i.e. just plugged into AC power and powered up my Mac Studio M4, everything would work as expected. I could change to any of the presets, or refresh rates, and the monitor would respond fine. But, if I put the M4 to sleep and woke it up a while later, the XDR would go to a black screen if I changed to a different preset. The only way to bring it back was to unplug and start over. Then everything would work until the next sleep cycle. I contacted Apple Support via chat and that was a waste of time. The guy had me start the M4 in the safe mode, then let it sleep. Same problem. I waited a day and called in but got no additional help. He had me hook up to a different Mac, but I was unable to replicate the problem. Seems like it has to sleep for more than a few minutes for the problem to occur. Problem occurred with the TB cable that came with the Display as well as with two different Apple TB4 cables. I asked if any reports had come in from other users, but the tech had no idea. I suspect it's a handshake problem that can be corrected with an update, but I didn't want to risk it not being fixed and getting outside the return window. Lesson learned.....don't buy brand new hardware. Anyone else experiencing this issue?
