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Thread: HDCP Nightmare

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    HDCP Nightmare

    I have a Windows Media Centre in the front room that is exclusively used for the TV.

    For a year or so it's been running a 6800GT or something and has been solid. This weekend I decided to give it a bit of an upgrade...A bit more RAM (which really helps with the huge music collection on there) and a new graphics card in preparation for a Bluray drive sometime soon.

    I knew the 6800GT would probably be pushing it a bit, plus a little upgrade means I could probably use it for a few games in the future. Decided to drop in a 9600GT and hook it all back up.

    Everything is working apart from the sound. Check all the cables - still nothing. Plug some headphones into the jack on the motherboard and sound comes out.

    The setup is fairly simple. A DVI->HDMI cable, and a 3.5mm jack -> 2*RCA for sound. Nothing fancy....you'd think.

    After messing about for an hour I plug in my mobile phone and play some music through it - still nothing. Decide to reboot the PC, but this time at POST + before Windows I can hear music. As soon as Windows kicks in...no sound. I didn't know that sound was working before Windows previously, because the BIOS doesn't give any indication of it.

    Things kind of start to make sense a bit more and go hunting in the nVidia control panel. A nice new menu is now there telling me that the HDCP link between the computer and TV is working.
    Seems the TV won't even look at the RCA inputs when a HDMI link is present, it *has* to have it over the HDMI cable.

    Plug the only 6800 card in and sound is back (it doesn't support HDCP)

    Nightmare

    So does anyone know how to disable HDCP on a nVidia card? I've looked around and can't find anything.
    The alternative is I buy or make a internal cable to feed through to the card....ughh...

    Cheers

    Remember folks - copy protection. It's there for you
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

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    Re: HDCP Nightmare

    I dont think HDCP can be disabled becuase then it woulnt be protecting you, would it ?
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    Re: HDCP Nightmare

    I used to run a 9600gt in my media pc and never had any issues, i was using an xfi sound card though.

    Have you checked to see if the sound device is actually set to onboard sound (or whatever) or if the sound has been set to the 9600gt? I have heard (no pun honest) of this happening with ati cards not sure if it does on nvidia though.
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    Re: HDCP Nightmare

    Quote Originally Posted by mac124 View Post
    I used to run a 9600gt in my media pc and never had any issues, i was using an xfi sound card though.

    Have you checked to see if the sound device is actually set to onboard sound (or whatever) or if the sound has been set to the 9600gt? I have heard (no pun honest) of this happening with ati cards not sure if it does on nvidia though.
    Yup - tested with headphones so I know for certain the audio is there, the TV just won't use the RCA inputs while there is a valid HDCP signal
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

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    YUKIKAZE arthurleung's Avatar
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    Re: HDCP Nightmare

    Quote Originally Posted by Agent View Post
    Yup - tested with headphones so I know for certain the audio is there, the TV just won't use the RCA inputs while there is a valid HDCP signal
    Go to your TV's sound setting? There might be an option to change between HDMI audio and RCA input.

    Another alternative is to use Component output. Quality probably not as good but you get to keep the 9600GT.
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    Re: HDCP Nightmare

    First place I looked

    I'll have a poke about in the service menu when I get another second in the vain hope there is something in there.
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

  7. #7
    YUKIKAZE arthurleung's Avatar
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    Re: HDCP Nightmare

    Workstation 1: Intel i7 950 @ 3.8Ghz / X58 / 12GB DDR3-1600 / HD4870 512MB / Antec P180
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    Re: HDCP Nightmare

    Have seen that too arthurleung - after reading it though I can't find anything specific to HDCP in there (mainly that it disables it for certain).
    I am going to give it a shot this evening though when everyone is out given that it will only take 20 mins tops

    Cheers
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

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    Re: HDCP Nightmare

    Has your tv got a vga input? I found that to give a better picture over hdmi anyway (for non media stuff ie surfing the net etc) and as of yet never had any issuse playing blurays due to supposed lack of HDCP.
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    Re: HDCP Nightmare

    Yup, but I have that input marked for something else

    I managed to sort it by making my own nVidia SPDIF audio passthrough cable last night. I'll post some pictures up soon
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

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