Monitors go blank after closing lid

[rboerner]

Originally Posted by timhenn

Brand new user here, not feeling great that I have to post a problem to get this new hub working correctly. I was using a different hub prior to this one where a closed-lid both displays worked fine.

2 x AOC CU32V3 32"
MacBook Pro 2019
Big Sur 11.6.1
Brand new Targus Dock180USZ


After I downloaded the driver and found the installation steps, both AOC monitors displayed correctly. I thought I was all set, so I closed the lid of my Macbook and the displays went black. Touched the keyboard and the both displays came back locked. I typed my password to login, the screens flashed the right screen for a one or two second then went blank. This series of steps repeats itself if I touch the keyboard to wake it up - both display show, I login, they go to black. Tried resetting the mac book. Same results.

Before I give up and send this back, any thoughts on what might be causing this behavior?

Thanks,
Tim

'Closed Display Mode', also known as clam-shell mode or using the laptop with the lid closed has certain requirements when using a DisplayLink device with a Mac with an Intel processor.

The Mac must be running macOS 12 Monterey and an external power source must be connected to the Mac.

Based on your description, I suspect the fact that you have macOS 11 Bir Sur installed to be the source of the problem.