I've discovered that the multimedia dock has another shortcoming together with the Note 8. USB memory drives are not recognized by the device, the dock has specs for 32 GB drives, and those seem to work with the Galaxy Note 2, S3 and S4, but not with the Note 8.
I've also tried connecting my original Note, but nothing is recognized. Around the micro USB connector is a plastic pad that pushes down and even rotates a tad, probably for better viewing angle. I'm not sure if that has anything to do with recognizing connected devices.
Out of curiosity, I wonder if anyone with rooted devices have been able to use the multimedia dock as a connected peripheral?