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Groups > alt.comp.os.windows-10 > #183672
| From | Paul <nospam@needed.invalid> |
|---|---|
| Newsgroups | alt.comp.os.windows-10 |
| Subject | Re: HDMI & HDCP |
| Date | 2025-04-14 18:49 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <vtk3du$2ajtb$1@dont-email.me> (permalink) |
| References | <vth1uc$3hjkf$1@dont-email.me> <vth9hj$3o85p$1@dont-email.me> <vtj0sq$19s8m$1@dont-email.me> |
On Mon, 4/14/2025 8:59 AM, Ed Cryer wrote: > Paul wrote: >> On Sun, 4/13/2025 3:05 PM, Ed Cryer wrote: >>> I have an Apple TV. I recently installed Channel4 and ITVX apps on it, but with strange results. The picture is blank, but sound and subtitles are ok; as is picture on advertisements. >>> BBC iPlayer, YouTube, VLC etc work just fine. >>> >>> This apparently has something to do with DRM. I think I need an HDCP-compatible cable, but my best attempts at googling haven't discovered one. >>> >>> Ed >> >> This is info from three years ago. >> >> https://www.reddit.com/r/tvPlus/comments/ygrtwv/apple_tv_on_windows_not_playing_hd_or_4k_is_not/ >> >> "Playing protected content at 1080p or higher requires a protocol called HDCP 2.2. >> Most monitors, laptops and tablets sold today are compatible with this standard and >> should be able to stream without issues. 4K content, on the other hand, requires both >> HDCP 2.2 and HEVC codec to work. The latter needs the user to buy a $0.99 extension >> in the Microsoft Store. >> >> HEVC is currently supported by only one Windows browser: Microsoft Edge. >> While Apple TV+ works using Google Chrome and Mozilla Firefox, the resolution >> and bitrate may not be the best. >> " >> >> It seems a kind of pessimistic proclamation. At a guess, at my house, I could >> only meet this, by going out and buying a new 4K display device, and then it >> would provide the display end. If I were to buy just an HD monitor (1920x1080), >> the manufacturer might not feel the need to implement the latest standard. >> But higher res monitors can be so whizzy, you need a new video card to >> keep up with them. >> >> While this sounds nasty, enough of your setup is working, it's likely as you surmise, >> to be a video card to monitor issue of some sort. Not a whizzy enough standard being used. >> >> https://en.wikipedia.org/wiki/Protected_Media_Path >> >> You can see the hits just keep on coming here. Maybe 2.3 is secure ? Maybe ? >> >> https://en.wikipedia.org/wiki/High-bandwidth_Digital_Content_Protection >> >> Paul > > Thanks for that, Paul. > There's a crazy pattern of things that do work and things that don't. > Channel4 works on all Windows computers that I have. They need Widevine installed in Firefox, but the monitors don't object; a Samsung TV, a JVC TV, a laptop monitor all work ok. > The app works on my iPad, iOS; but when I screen-mirror to the Apple TV both displays go blank. > > The Apple TV is plugged into a Panasonic 48" TV. > So then, which device is the culprit? It's either the Apple TV or the Panasonic. > > Ed > I would check the HDCP (High Definition Content Protection) version of the Panasonic. The Apple TV likely feels quite comfortable on its end. But for a protected path, it needs confirmation the display implements a secure protocol. And you can see in Wikipedia, the nibbling away at HDCP version continues. Companies can do one of two things. They can pretend to care. Or, they can care. Some companies, go the extra mile to inconvenience users, so that there is absolutely no chance of being sued or charged under some law. For example, when you buy Philips brand equipment, if DRM is involved, it's "vacuum sealed and air tight". some other brands, a few "special key presses" and the facade falls off :-) Paul
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HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-13 20:05 +0100
Re: HDMI & HDCP Paul <nospam@needed.invalid> - 2025-04-13 17:15 -0400
Re: HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-14 13:59 +0100
Re: HDMI & HDCP Another John <invalid@invalid.invalid> - 2025-04-14 16:57 +0000
Re: HDMI & HDCP Paul <nospam@needed.invalid> - 2025-04-14 18:49 -0400
Re: HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-15 10:52 +0100
Re: HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-15 11:05 +0100
Re: HDMI & HDCP Paul <nospam@needed.invalid> - 2025-04-15 08:22 -0400
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