MS 14,14 Apple Cinema Display fails to wake up using Club 3D adapter CAC-1510-A

[howdytom]

I am using the CAC-1510-A adapter (HDCP off version) to connect a 23-inch Apple Cinema Display to a M2 Mac Studio on macOS Sonoma 14.7.2. Also, a 27 Dell monitor is connected via USB-C as primary display.

The adapter is working fine. However, sometimes the Apple Cinema Display remains black when the display turns into Lock screen. When I get back from a 20-30 minutes break, the Apple Cinema display is recognised just fine. However, when I am away for 1-2 hours and both displays are in Lock Screen, the Apple Cinema Display remains black, but still shows up as secondary monitor in System Preferences. Unfortunately I have to constantly reboot the Mac Studio or unplug the adapter. That is pretty annoying. Is this known issue? Anyone else experience this issue? What can I do?

 

[TheBonk]

I have this issue with the same adapter on a 30 inch ACD I recently acquired. I just settled with turning the monitor on and off with it's power button instead of waiting the couple of minutes it takes for the monitor to wake from sleep.

 

[howdytom]

Thanks, when I try to press the power button next to the ACD, the display remains black.

 

[retlif]

I used CAC-1510-A with ACD 30“ and 23” and M1 Studio Max with no problems on Sonoma up to version 14.7 and now on 15.2. So, looks like the M2 is the problem?