Island can be set by your organization to block the macOS screen capture API which the DisplayLink Manager needs to access the Screen Recording permission to produce a virtual display to its monitors. When that policy is active, Island may refuse to load protected sites or content while DisplayLink Manager is running. Plugable cannot change this from the dock or the DisplayLink driver; it is controlled by your organization's Island policy.
Why the Island Enterprise Browser Blocks DisplayLink Monitors
A DisplayLink dock does not receive video directly from the Mac's graphics hardware. Instead, the DisplayLink Manager application builds the image for each external monitor in software and sends it to the dock over USB. To do that, macOS requires DisplayLink Manager to hold the Screen Recording permission. DisplayLink Manager is not saving or sending a recording of your screen; macOS uses the same permission category for any application that needs to read screen contents. More detail is in Why Does macOS Say “DisplayLink Manager Is Capturing Your Screen”?
Island is a browser built for managed work environments. One of its data protection controls lets an organization block screenshots and screen sharing so that protected content cannot be captured. Island cannot tell the difference between an application that records the screen and one, like DisplayLink Manager, that reads the screen only to power a virtual display.
Are DisplayLink Docking Stations Compatible with Island?
At this time, we cannot confirm compatibility between DisplayLink-based docking stations and the Island Enterprise Browser.
Applicable To
- Plugable DisplayLink-based docking stations and USB graphics adapters, such as the UD-6950PDH
- Mac computers with the DisplayLink Manager application installed
- Organizations that use the Island Enterprise Browser with a policy that restricts screenshots or screen sharing
