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Apple's recent macOS 10.13.4 update is causing some havoc among people using screen extenders like Duet Display and Air Display, as well as USB DisplayLink-connected monitors.
'Installing macOS release Version 10.13.4 will cause Duet Display stop functioning after the OS upgrade,' the app's developer said in a support article. 'We have alerted Apple to this issue and are working hard to find a resolution. These features continue to work as expected in 10.13.3.'
Duet Display and Avotron's Air Display lets Mac owners turn an iPad into a secondary display. Items viewed on the iPad support touch interactions, and users can even simulate the MacBook Pro's Touch Bar for extra control.
'We are actively looking into workarounds so that Duet is not affected by the macOS bug, and will keep you informed,' the Duet Display support article continues.
The DisplayLink driver installation includes a system extension (DisplayLinkDriver.kext) that are affected by this policy. As a result of this change users now must explicitly enable this system extension after installing the DisplayLink driver and before the DisplayLink software is allowed to run.
Important Information about macOS 10.13.4 update. We have become aware that installing macOS release Version 10.13.4 will cause DisplayLink connected displays to go blank after the OS upgrade, with the current DisplayLink driver 4.1 installed. Functionality such as Ethernet and audio, where implemented, is unaffected. 'We have become aware that installing macOS release Version 10.13.4 will cause DisplayLink connected displays to go blank after the OS upgrade, with the current DisplayLink driver 4.1 installed. Functionality such as Ethernet and audio, where implemented, is unaffected. We have alerted Apple to this issue and are working hard to find a. “We are aware that installing macOS release Version 10.13.4 will cause DisplayLink connected displays to go blank after the OS upgrade, with the current DisplayLink driver 4.1 installed. DisplayLink USB Graphics Software for Mac OS X and macOS (4.3.1) The terms of the software license agreement included with any software you download will control your use of the software. Please read and accept the following Software License Agreement. Mar 30, 2018 At this time, there are no updates for those running macOS High Sierra 10.13.4+ to re-enable full DisplayLink functionality. It is unknown if Apple will choose to restore this functionality to High Sierra, however it appears unlikely that they will do so. The DisplayLink driver version 4.3 is still available for 10.13.4+ users as a workaround.
Avatron, the makers of Air Display report similar problems.
![Driver Driver](/uploads/1/2/7/0/127076932/486446528.jpg)
Air Display users: Please don't update your host Mac to macOS 10.13.4. It introduces severe WindowServer bugs that crash most inelegantly when you connect to a virtual monitor like Air Display (or its competitors). 10.13.3 still works fine. Hopefully Apple will fix 10.13.4 soon.
— Avatron Software (@Avatron) March 30, 2018Issues are also serious with DisplayLink peripherals like some docks and USB monitors, as installing macOS 10.13.4 may cause them to go black. Secondary features such as sound and Ethernet connections should continue to work, as they are based on USB features baked into the protocol.
'We have alerted Apple to this issue and are working hard to find a resolution. These features continue to work as expected in 10.13.3,' DisplayLink said, echoing Duet's statements.
As a workaround, downloading DisplayLink 4.3 drivers should at least enable using screens on clone mode, though mirror and extended modes are still broken. 'Cloning' simply duplicates the main screen resolution without any display controls, though it will scale or letterbox as needed.
Displaylink Driver For Windows 10
Both display extenders using an iPad and the DisplayLink products relied on unsupported workarounds to function in macOS. Apple performed a great deal of work on the graphics in macOS 10.13.4 to implement eGPU technologies, so it stands to reason the problems are related to that effort.
Similar problems, related to Apple's Metal platform, were encountered with DisplayLink in macOS 10.12 Sierra. These included window server crashes, and corrupted or missing graphics in some apps and interface elements. Those issues were ultimately resolved with the release of macOS 10.13.
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I have been using a Toshiba Dynadock docking station to power two Dell U2713HM monitors for 5 years using my Apple Macbooks and Windows (work) machines without incident. This has allowed me to utilize a three external monitor workflow (4 monitors when including the laptop display) when using my macs and windows machines. After upgrading to MacOS 10.13.4 the displaylink driver no longer works. The displaylink driver allows the system to power two external monitors via a single USB 3.0 port. I've spoken to Apple support representatives and Displaylink support representatives and there seems to be a disconnect between both companies. As a longtime Apple customer and owner of several Mac machines I simply need my system to work the way it always has. Upgrades shouldn't remove/delete functionality; it should improve my computing experience. After upgrading to MacOS 10.13.4 I had to restore my systems to 10.13.3 to restore my external monitor functionality.
I really don't care who's responsible for causing this issue as a user I simply would like my system to continue to work as it always has or better. A lost of functionality should never be the cost of an upgrade. I own Macs because I've come to expect cutting edge excellence and the best computing experience money can buy. So imagine my disappointment when I had to spend several hours restoring 10.13.3 and set all my Macs to prevent automatic updates.
The problem as I understand it, 'Apple as of 10.13.4 has restricted GPU support to the ports that directly connect to the GPU. If there's a reason Apple made this move; as a customer I'd like to know why. Simply put please explain why GPU support is now restricted.
I'd like Apple or anyone to explain how to create a three external monitor Mac/Windows dock workflow post MacOS 10.13.4 now that the GPU support is blocked?
MacBook Pro (Retina, Mid 2012), OS X Mavericks (10.9), VMWare - loss wireless in Windows 7
Uninstall Displaylink Driver Mac Os
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