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Enable HDCP protected content playback on macOS (iTunes)

Hi,

I had to downgrade to Sierra 10.12.6 because of the multi-monitor incompatibility of Displaylink 10.13.4. I need my multi monitor setup. But the truth is that Displaylink 4.1, which is compatible with Sierra 10.12.6, deactivate iTunes movies. Here is the message:

The selected display won't play on one of your connected displays

This movie can be played only on displays that support HDCP (High-bandwidth Digital Content Protection). Try moving the iTunes window to a different display. Make sure the entire window is on the supported display.

When I remove Displaylink from OSX 10.1206, iTunes movie start to plays back. In short, Displaylink make the my iMac see it's own screen as an external monitor which is totally ridiculous from an programmer standpoint. This is not mention into know problems between Displaylink and Sierra 10.12.6. I manage to sent an email to the company without any respond. They probably did not liked the way I express myself, but I was piss.

Anyhow, anybody who can't see a movie and need multi monitor : downgrade to Sierra 10.12.6 and install Displaylink 4.1. Uninstalled it when you really want to watch a movie. Reinstalled 4,1 when you really need your multi monitor. Since I cannot upgrade in between 10.12.6 and 10.13.4 there is no way if an update between those versions would had fix this ridiculous problem. At least now, I can do My job and enjoy a movie on Saturday night by going through this annoying procedure.

Thanks

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  • JohNB commented  ·   ·  Flag as inappropriate

    I've also had the same problem - Upgrade Mac 2015 to 2017 and bought a USB-C dock for two external monitors.
    Before installing Displaylink, my StarTech dock only supports on HDMI monitor, but iTunes content works no problem. Once I've installed Displaylink 10.14 both monitors are supported, but I cannot play iTunes contact on ANY screen - The two external monitors or the Macbook Pro's own screen.

    Tried SD content instead of HD - Same issue, but with SD content I can heard the audio, but there is no picture.

    Both Monitors support HDCP, the Macbook AND the hardware of the dock, so the issue (as noted on other feedback) is DisplayLink drivers.

    Please can you look into this ASAP!!?

  • Andreas Deuschlinger commented  ·   ·  Flag as inappropriate

    Dear Alban,

    Thanks for your answer.

    Meanwhile I contacted various manufactures for USB-C docking stations and I directly asked them about HDCP-support for 4K at 60Hz.
    So far Elgato, Sonnettech and Delock (I could only test 4k at 30Hz) confirmed HDCP support.

    It can be clearly done, as other products work as expected on macOS Mojave.

    I have returned my currently broken Videoseven Docking Station and will replace it with a feature-complete one.

    Kind Regards,
    Andreas

  • AdminAlban Rampon (Product Manager, USB Docking and Graphics Adapters, DisplayLink) commented  ·   ·  Flag as inappropriate

    Dear Andreas,
    Unlike you first post statement, the link you gave me is not for Thunderbolt 3 docking station at all.
    Thunderbolt 3 is using a USB alternate mode, which means non-USB traffic over a USB-C *plug*.

    I don't know which chip SKU is in this particular product and this is a key element.
    The product may be HDCP capable and compliant, but not offer that feature on that particular OS. This feature will require collaboration with the OS vendor. It is on the roadmap but not done on macOS, and that's why the suggestion is not set as "completed" or "declined". Most of the use case for universal docking has been office productivity.

    The product may also have no HDCP key and therefore incapable of ever decrypting content, by contractual requirement of DCP licensing. The product manufacturer must be a member of the body to be allowed to have chips with keys. Licensing also applies to companies who want to claim offering HDMI support.

    If you create a support case with the DisplayLink logs (https://support.displaylink.com/knowledgebase/articles/755301), then we can look into if that product is HDCP capable or not as we'll get the chip SKU built-in. Videoseven doesn't claim their product offers HDCP, so to me, that is a hint that they don't support it.
    HDCP is not just about software.

  • Andreas Deuschlinger commented  ·   ·  Flag as inappropriate

    @Alban

    Thanks for your reply.

    Though your statement is incorrect.
    I just bought this docking station from Videoseven:
    http://www.v7world.com/us/products/docking/universal-usb-c-with-power-delivery-dual-docking-station.html

    Which clearly states in it's manual that the DisplayLink Driver needs to be installed.
    Furthermore I reached out to Videoseven and they confirmed that HDCP isn't working.

    Unfortunately all manufactoures using white-label Hardware based upon DisplayLink are broken, this affects brands like Wavlink, Videosefen, i-Tec, etc.

  • Andreas Deuschlinger commented  ·   ·  Flag as inappropriate

    Hello,

    I just bought an Thunderbolt-3/USB-C Docking Station using DisplayLink Manager 5.0.1.
    Everything seemed to be easy to setup, but unfortunately as soon as I wanted to watch movies on my external 4k Screen connected over DisplayPort iTunes threw an error that my screen is not supporting HDCP protected content playback.
    Which is incorrect, it all worked perfectly fine, with my old Docking Station for Thunderbolt 2 at my old Macbook Pro.

    I'm running MacOS Mojave at both devices.
    I'm a professional Software Engineer and I know it must be possible, as it's clearly working with other manufactures.

    May I ask you to give this high prio, it's unacceptable that this docking station offers dual 4K monitor at 60Hz by HDMI or DisplayPort, still not supporting high resolution content properly.

    Please add this important information to your caveats section.
    I wouldn't bought it if I had known this bug earlier.

  • AdminAlban Rampon (Product Manager, USB Docking and Graphics Adapters, DisplayLink) commented  ·   ·  Flag as inappropriate

    There is no trace of any ticket from this email address.
    However, you are correct that if you were inappropriate or insulting, we would have closed your ticket without any reply. Being frustrated, whatever the level, doesn't mean our staff has to be insulted.

    I have renamed the feature for what you wish: enable HDCP playback support on macOS. That type of feature will require collaboration with the OS vendor so we can get access to the encrypted pixels, like we did with Microsoft and Intel for Windows 10. Software vendors also had to follow the OS implementation changes. Then, based on capability reported, the video player decides what it plays, if it plays. For instance today, Netflix lowers the quality for non-protected outputs.
    Finally, it will also require that your hardware supports HDCP. Not all device manufacturers are DCP licensees. Being DCP licensee is a requirement for DisplayLink to be allowed to ship them chips with HDCP keys inside that they can use in their product.

  • Luc commented  ·   ·  Flag as inappropriate

    iTunes

    Hi,

    I had to downgrade to Sierra 10.12.6 because of the multi-monitor incompatibility of Displaylink 10.13.4. I need my multi monitor setup. But the truth is that Displaylink 4.1, which is compatible with Sierra 10.12.6, deactivate iTunes movies. Here is the message:

    The selected display won't play on one of your connected displays

    This movie can be played only on displays that support HDCP (High-bandwidth Digital Content Protection). Try moving the iTunes window to a different display. Make sure the entire window is on the supported display.

    When I removed Displaylink from OSX 10.12.6, iTunes movie start to plays again. In short, Displaylink makes my iMac see it's own screen as an external monitor, which is totally ridiculous from an programmer standpoint. This is not mention into know problems between Displaylink and Sierra 10.12.6. I manage to sent an email to the company without any respond. They probably did not liked the way I express dissatisfaction, but I was really piss that both version were causing major problem when using them.

    Anyhow, anybody who need multi-monitor : downgrade to Sierra 10.12.6 and install Displaylink 4.1. Uninstalled it when you really want to watch a iTunes movie. Reinstalled 4.1 when you really need your multi monitor setup. Since I cannot upgrade in between 10.12.6 and 10.13.4, there is no way I can know if an update between those versions would had fix this ridiculous problem. At least now, I can do My job on multi-monitor and enjoy a movie on Saturday night by going through this annoying procedure i just explained.

    Thanks

  • Luc commented  ·   ·  Flag as inappropriate

    iTunes

    Hi,

    I had to downgrade to Sierra 10.12.6 because of the multi-monitor incompatibility of Displaylink 10.13.4. I need my multi monitor setup. But the truth is that Displaylink 4.1, which is compatible with Sierra 10.12.6, deactivate iTunes movies. Here is the message:

    The selected display won't play on one of your connected displays

    This movie can be played only on displays that support HDCP (High-bandwidth Digital Content Protection). Try moving the iTunes window to a different display. Make sure the entire window is on the supported display.

    When I remove Displaylink from OSX 10.1206, iTunes movie start to plays back. In short, Displaylink make the my iMac see it's own screen as an external monitor which is totally ridiculous from an programmer standpoint. This is not mention into know problems between Displaylink and Sierra 10.12.6. I manage to sent an email to the company without any respond. They probably did not liked the way I express myself, but I was piss.

    Anyhow, anybody who can't see a movie and need multi monitor : downgrade to Sierra 10.12.6 and install Displaylink 4.1. Uninstalled it when you really want to watch a movie. Reinstalled 4,1 when you really need your multi monitor. Since I cannot upgrade in between 10.12.6 and 10.13.4 there is no way if an update between those versions would had fix this ridiculous problem. At least now, I can do My job and enjoy a movie on Saturday night by going through this annoying procedure.

    Thanks

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