External monitor not detected after Windows 10 upgrade

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Hi all. I finally caved and allowed my Dell XPS15 laptop to upgrade from Window 7 to Windows 10, and the external monitor stopped working. I use a Dynadock to connect my laptop to a ViewSonic monitor, but the system is no longer detecting the monitor, and the monitor is no longer getting a signal. Audio and USB peripherals appear to work fine through the Dynadock. I've tried uninstalling and cleaning and reinstalling the latest video and Displaylink drivers in multiple sequences and combinations with zero luck.

Anybody have any ideas? This is driving me nuts and I really don't want to have to trash my docking station because of an "upgrade." I've attached the log file generated by the support tool.

Thanks!