4. Mac M4 display connection options

Apple has changed the Thunderbolt on the M4 Macs and it seems that is not 100% Thunderbolt backwards compatible, causing many devices to not work as they did with previous Apple Silicon Macs. 

 The MP Controller's display does not receive a video signal when using Thunderbolt USB-C on the M4 as it did on previous Apple Silicon Macs. 

 You should use an HDMI connection for video signal and USB-C (USB-C or USB-A if using a docking station) for the touch data and for providing power to the display.  

 Y ou can optionally (recommended on Model 2A) also use the additional power port using a wall adapter to provide power to the display so that it draws less power from your Mac. 

 If you need an additional HDMI ports you can use a USB-C docking station like these   offered on Amazon.