Hi all,
As the developer of MonitorControl and BetterDisplay (both are popular macOS apps to control displays), I'd be happy to add DDC support for DisplayLink. It would be great to have a simple API, maybe based on simple DistributedNotificationCenter notifications back and forth - this would probably be very simple to implement. If full DDC support is not feasible, simply allowing the currently exposed brightness and contrast controls would be great as well!
Best,
waydabber
ps. a user pointed me to this thread.