MacOS DisplayLink Manager Screen Recording permission blocks streaming (Netflix, etc)

[mycreativepixel]

It apparently happened over the weekend. I can hear my video and see subtitles but video shows nothing. PLEASE FIX ASAP as this should be a VERY basic thing for users.

[azwildcat]

Originally Posted by mycreativepixel

It apparently happened over the weekend. I can hear my video and see subtitles but video shows nothing. PLEASE FIX ASAP as this should be a VERY basic thing for users.

I hope they fix it soon, I actually spoke with someone right away when I sent them an email, hopefully they'll get someone to figure it out.

[lgcwow]

Originally Posted by mycreativepixel

It apparently happened over the weekend. I can hear my video and see subtitles but video shows nothing. PLEASE FIX ASAP as this should be a VERY basic thing for users.

I think the background update of iOS make it happen. How to fix it?

[kenna]

Originally Posted by mycreativepixel

It apparently happened over the weekend. I can hear my video and see subtitles but video shows nothing. PLEASE FIX ASAP as this should be a VERY basic thing for users.

This is extremely frustrating and totally defeats the purpose of buying this relatively expensive hub to use multiple monitors. And it seems like a pretty big problem too... The screen recording feature is the core feature that the Display Link systems use to project windows across more than one display with the new M1 chips in Macs. Will Display Link even be able to release a driver update to get around this incompatibility with streaming services? I don't have the money to blow on another expensive hub and will be leaving very negative reviews for this system. What a waste.

[jabsroche]

I was told by a Netflix rep the following:

REP: That means that the HDCP certification itself for the cable that you're using for the external screen is already outdated. You can go to the nearest techstore in your area and look for a cable with an updated HDCP cerification to at least 2.2. Since our contents are protected by copyrights and licenses, there's that certifications for these hardwares to allow the safe travel of the shows from one device to another.Sort of related to piracy prevention.

So if the said certification requirement is not met, video won't really play or there'd be the actual message about HDCPs. You can still watch with the external screens by having new cables that are updated with the recent HDCP certifications though.

Does anyone here know if the cable is the one that goes into the Display link port or the cables that go into the monitors?

[paultzirides]

If this were a TV being connected to a streaming box using an HDMI cable, sure, that would be the issue, but I don't believe that's what's happening here.

Mac > USB dock/dongle (DisplayLink) > Display

It's that middle part that is the issue. As I understand it, the DisplayLink application uses the macOS "Screen Recording" API to grab video signals and sling them over to the connected display. It's not the cable that's the issue, it's the core of the system. Netflix, Apple TV, Hulu, etc. don't want to allow their content to be displayed while this core system mechanism is in use because it cannot differentiate between, for example, a legitimate display that is connected to a DisplayLink device and a screen recording device or application that someone might use to slurp up copy-protected content.

What needs to happen is that Apple needs to create separate APIs for "Screen Recording" and "Additional Displays" (hypothetically something like that). A developer like DisplayLink can then take advantage of the "Additional Display" API, which Apple could then guarantee to content providers like Netflix, Hulu, etc. would not allow for screen recording and theft of copyrighted content. DisplayLink is operating with what Apple is providing for developers and doing their best with the tools they have.

It sucks, I hate it just as much as everyone else, but this is the most likely scenario preventing HDCP content from being displayed.

[jabsroche]

Originally Posted by paultzirides

If this were a TV being connected to a streaming box using an HDMI cable, sure, that would be the issue, but I don't believe that's what's happening here.

Mac > USB dock/dongle (DisplayLink) > Display

It's that middle part that is the issue. As I understand it, the DisplayLink application uses the macOS "Screen Recording" API to grab video signals and sling them over to the connected display. It's not the cable that's the issue, it's the core of the system. Netflix, Apple TV, Hulu, etc. don't want to allow their content to be displayed while this core system mechanism is in use because it cannot differentiate between, for example, a legitimate display that is connected to a DisplayLink device and a screen recording device or application that someone might use to slurp up copy-protected content.

What needs to happen is that Apple needs to create separate APIs for "Screen Recording" and "Additional Displays" (hypothetically something like that). A developer like DisplayLink can then take advantage of the "Additional Display" API, which Apple could then guarantee to content providers like Netflix, Hulu, etc. would not allow for screen recording and theft of copyrighted content. DisplayLink is operating with what Apple is providing for developers and doing their best with the tools they have.

It sucks, I hate it just as much as everyone else, but this is the most likely scenario preventing HDCP content from being displayed.

Well, that stinks. Thanks for the reply.

[jamesnlogan]

I have been able to play Netflix/DisneyPlus+ content via my DisplayLink connected external monitors with no problems for nearly two years now till it broke sometime last week.

I had a pending update to macos 12.3.1 which I applied after I started experiencing the issue hoping it would resolve it. Also updated DisplayLink (again, after the fact). Only afterwards did I find the posts saying that this is a known limitation.

But why did it work up until now? What changed last week that started enforcing this?

--
jnl

[gkelway]

I think apple is enforcing this in one of their latest updates.

Try the Opera browser. It's still working for me.

[jrcalde]

Found a way to fix it temporarily for Chrome. In settings go to: Use hardware acceleration when available, turn it off, relaunch and the issue will be fixed. Still not ideal as it brings other issues such as camera does not work properly for Google Meet sometimes but it fixes video streaming issue.