this post was submitted on 01 Nov 2023
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Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ
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I used to work as AV technician in a big corporation and had one of those that always saved my ass everytime someone with a MacBook wanted to do a presentation.
Yup, same. For the unaware: Macs have always-on HDCP, and it doesn’t always work as intended.
Lots of times, I’m trying to run a projector with a feed from the presenter’s laptop. Laptop is on stage, projector is in the tech booth. And the line in between the stage and the booth will complete the video signal, but not the HDCP handshake. So Windows machines will work fine, but Macs will just outright refuse to send anything.
So yes, I keep an HDCP stripper handy, because whenever a client pulls a MacBook out I know I’m going to need it.
I get why hdcp exists, but why the fuck would apple enable it permanently, for everything? They afraid of people pirating their own desktop or something?
Because it accelerates the user experience when transitioning from non-hdcp to hdcp-protected content on their display(s). There's no need for re-negotiation of the display protocol causing some minor flickering during the transition.
But that only matters if you're presenting mixed content.
Yeah.
Ouch! Thankfully haven't run into this issue... either the display adapter I use has a HDCP stripper inside, or my Linux install isn't enforcing HDCP on my macbook