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Displays Do I have this right?

Discussion in 'Hardware' started by Vault-Tec, 30 Sep 2019.

  1. Vault-Tec

    Vault-Tec Green Plastic Watering Can

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  2. Vault-Tec

    Vault-Tec Green Plastic Watering Can

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    Haha it didn't work. AMD Fury did but everything was in slow mo.

    Would be soooo nice to hook up the pc to the TV.
     
  3. thewelshbrummie

    thewelshbrummie Active Member

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    That's fine - just had the same issue typing out this very post, cutting hyperlinked text then pasting it is changing the text colour to black (it's happened to me before, see this thread).

    Maybe spending 20+ mins on proofreading/accuracy checking my posts is a bad idea but at least by using dark mode I have a chance of spotting it in the future (though my previous post looked fine when I checked it).
     
  4. thewelshbrummie

    thewelshbrummie Active Member

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    No problem - like I said it does help having been paid by my former employer to assist Hisense customers with this exact problem.

    It was a weird setup - HIsense sub-contracted out most of their customer service to another company - who were the network we were part of. They sub-contracted the whole lot to us, so we dealt with the majority of stuff ourselves (mainly things like providing software updates and "dead" TVs which were simply switched off). I'm guessing you spoke to someone at Hisense head office as we never had conversations in the 2 hour range but some of them did. Our involvement ended in May 2017 after the company who contracted the work to us went into liquidation.

    Feel free to skip the next 2 paragraphs as it's from memory and I'm not 100% certain it's right but I'm confident that at least some of it is correct:

    I think the HDFury devices use a workaround that reduces the bandwidth of the signal by changing the colourspace (possibly by reducing a 4:4:4 signal by using chroma subsampling, using 4:2:0 instead). I may be completely wrong but essentially it does some conversion that allows the HDCP handshakes to work and therefore means you get a picture on the screen rather than an incompatible format message (easy to replicate if you try to push 720p down phono cables - upscaling DVD players set to 720p or higher being a good example). The best way I can describe it is like having an Xbox that speaks English, a TV that speaks German and needing a translator who speaks English and German so that the TV can understand the Xbox. I think the HDFury accepts the HDCP2.2 handshake from the Xbox and sends a non-HDCP2.2 compliant handshake to the TV that the TV can accept. Essentially its a legal way of working around the HDCP encryption - at a obvious financial cost.

    Also, I remember being told that it doesn't apply to computers as apparently there's no HDCP handshake at all sent by a computer. If correct, a computer signal sent at 3840x2160 will always get to the display. It's not a free pass though - my Surface Go has a Kaby Lake Pentium CPU and therefore YouTube is happy to offer 4K60 as an option, even on its1800x1200 display - simply because it can output compliant video via the USB-C socket. My Intel Compute stick with its Skylake m3 CPU though doesn't support HDCP2.2 via HDMI (the only video output, which is version 1.4 on Skylake systems) - using the same video, YouTube only offered the 1080p60 stream - even with the stick connected to a 4K 60Hz TV, as the stick can't output 60Hz at 4K. Yet my HP Spectre Skylake Laptop is OK as I can output an HDCP2.2 compliant 4K signal via the DisplayPort socket (but not the HDMI socket). The point is that while the specifics of the hardware do matter, with a PC you won't ever get no picture at all - but you probably won't be able to do what you want to unless the hardware is compliant.

    The TLDR bottom line - The HDFury Linker you've linked to should work. The product website is pretty clear with the section titled "Display HDCP 2.2 Content with Non-HDCP2.2 Compliant Devices" - it describes exactly the issue you have and that it's designed to be a solution. Obviously don't expect HDR to work as your monitor doesn't support it - while it might send an HDR signal, I can't answer for what may happen to the picture you would actually get.

    This is a little subjective and obviously your decision - only you know whether the following makes financial sense. Personally speaking I'd argue that upgrading is the best option, simply because you're unlikely to need the HD Linker on any other TV you may buy in the future. A quick Google for 65" Hisense TV linked to an Argos stocked 65" Hisense 4K TV with HDR for £600 - & your 65" will still have some value simply because the screen is 65", maybe £300 at a push. That said, from memory the monitor was around the £1500 mark new so it's likely to have a pretty decent display inside - something I wouldn't be confident in saying for a £600 model (think of CPU binning, your monitor would absolutely have had a decently binned display which a £600 probably won't have). The 2016 65" Hisense TV was definitely considered entry-level so display quality probably won't be as good.


    I think that's the limit of what I can offer on this one.​
     

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