Houston, there’s a display bug to sort out with macOS High Sierra 10.13.4. The most recent operating update makes an assortment of DisplayLink or Duet Display products, as well as using your iPad as a second screen for your Mac, useless.
So far, the products revealed as not working with macOS 10.13.4 include:
DisplayLink
Duet Display
Air Display
iDisplay
A DisplayLink product manager said that macOS itself is the problem, not DisplayLink itself and offered the following quote:
“In the meantime, we are releasing a new driver [4.3] that will enable clone mode, but not mirror or extended mode displays in 10.13.4. If you require mirror or extended mode displays, we recommend that you stay on macOS 10.13.3 at this time.”
Some are speculating that the issue lies with Apple’s eGPU technology it added to the operating system. So far it doesn’t sound like it affects displays that connect directly to Macs using mini DisplayPort or Thunderbolt.
Please let us know if you’ve experience this issue from your end and we’ll have additional details as they become available.
Via The Mac Observer and TechRadar