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Content protected video does not play on Mac while DisplayLink screens are connected

When DisplayLink screens are connected some protected content in iTunes, HBO, Amazon Prime, Netflix, Disney+, YouTube TV or Udemy and other applications may not play. In those cases the video would remain black while audio is still playing.

This is due to the behaviour of the OS X interfaces the DisplayLink driver uses to access graphics content. A side effect of those interfaces is that as soon as one DisplayLink screen is connected, protected content becomes unavailable on all screens.

A workaround is to temporarily disconnect all DisplayLink screens, switch to another browser or disable hardware acceleration in your browser to access protected content.

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