Also posted in a different topic, but since it might be helpful to others facing USB-C issues:
After upgrading my laptop to the latest MacBook Pro 16-inch 2019 model, I also faced the same issues reported here: PPM shows the green ‘NO SIGNAL’ screen, while the MacBook does not recognise the projector connected to USB-C.
Thanks to the great support from Screeneo I was able to resolve the issue: It requires an upgrade of the USB-C firmware. The following link (provided by Screeneo support) contains all information you need to perform the firmware upgrade for the USB-C chip: https://s3.eu-central-1.amazonaws.com/ppx620/tools/PPX620-USB-C-Upgrade.zip
Some remarks on the process:
- You need a Windows machine to perform the steps (or use a virtual VM on Mac)
- The procedure is a bit sketchy: requires installation of a USB driver, install unsigned software that is only available in Chinese
- Make sure you rename the folders and executable filenames to only use regular (A-Z) characters. The provided ZIP file uses some weird characters which prevents Windows from opening the archive (“Unable to open archive file”)
- When you’re running the tool that performs the firmware upgrade, connect your PPM, wait for the tool to recognise the PPM, then select the last row on screen. Then simply hit the first button (I’ve been told that button is called ‘Write’).
Thanks to Screeneo support for the swift and accurate response when I reported the issue. I’m not sure if this problem is only applicable to Macs, or wether other Windows PCs also suffer from the same problem, perhaps someone facing similar issues on Windows machines can confirm ?