We have important news about macOS 10.13.4. This new macOS release only supports displays which are directly provided by a GPU or via AirPlay.
For UD-ULTCx Docking Stations, this means versions of Apple macOS after 10.13.3 will only support the single 4K HDMI port on the dock which uses DisplayPort Over USB-C technology (which is directly GPU connected). The second and third displays on the dock – the DVI and 2K HDMI ports using DisplayLink technology – will no longer function. Windows and Chromebook computers are not affected, and will continue to work as usual.
Note: All brands of USB docking stations which use DisplayLink chips and drivers are affected. This includes Targus, Dell, Toshiba, Kensington, Anker, StarTech; if the dock uses DisplayLink for graphics, it will no longer function as expected after updating to macOS 10.13.4.
To continue to use all dock functions with your Mac, macOS updates must be disabled to remain on 10.13.3. To do so, uncheck the two highlighted boxes in the screenshot below. The boxes to uncheck (disable) are “Download updates in background” and “Install macOS updates” These are found in the “App Store” portion of “System Preferences” within macOS.
It’s important to do this proactively now, as it’s difficult to revert macOS versions later.
We’ll continue to update the following blog post with the most up-to-date information available: https://plugable.com/2018/03/30/macos…