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HDCP DRM "master key" found?
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Originally posted by chrisr View PostIf true, does this mean that the OSS radeon driver could now (theoretically) connect to HDCP-enabled devices such as HDTVs? E.g. somehow embed a newly-generated key into the driver so that it could perform a HDCP handshake on a card's HDMI interface?
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How could Linux devices use HDCP before?
Originally posted by nanonyme View PostHmm, was that not possible before?
I can imagine HDCP being more of an issue for HDTVs than for monitors.
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IIRC, ATI's current cards decouple DRM hardware from video acceleration bits during design in order to be able to release documentation about their video and 3D engine. On the other side, HDCP is not implemented in software in any of the devices that support it. So, Every nVidia and ATI card that support HDCP has some hardware to support it and make the electronic negotiations between devices. Since these parts are not documented because of legal matters and ATI has divided these modules just for legal reasons, I will not bet on open source driver support of HDCP.
Bridgeman can clarify this more I think.
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This is irrelevant to connecting TV's to your computer. Linux does NOT IMPLEMENT HDCP IN ANY WAY, therefore the HDCP handshake is not required AT ALL. HDMI works perfectly on Linux. If your TV is capable of HDCP, that does NOT mean that it requires an HDCP SOURCE. Only if the SOURCE is HDCP, you need a monitor capable of decrypting it.
HDCP has NO EFFECT ON LINUX AT ALL. It is totally irrelevant.
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Originally posted by droidhacker View PostThis is irrelevant to connecting TV's to your computer. Linux does NOT IMPLEMENT HDCP IN ANY WAY, therefore the HDCP handshake is not required AT ALL. HDMI works perfectly on Linux. If your TV is capable of HDCP, that does NOT mean that it requires an HDCP SOURCE. Only if the SOURCE is HDCP, you need a monitor capable of decrypting it.
HDCP has NO EFFECT ON LINUX AT ALL. It is totally irrelevant.
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Originally posted by Silent Storm View PostIndeed, yes. If the source device doesn't want to encrypt the signal, HDCP doesn't come into play. My post was from a purely technological point of view. You can use HDMI devices just right away without utilizing any DRM hardware. Again to clarify. My post was just for technical insight.
What this does NOT mean is that you can play BD disks on Linux. Once that level is properly hacked, HDCP still won't apply since HDCP is ENTIRELY for between the GPU and the monitor. It simply wouldn't make any sense to add HDCP to data that is already clear just to take it away later.
Uncompressed 1080p, 24bit, 30fps:
~1.5 GB per SECOND.
Take your typical 90 minute movie, you're looking at 8 TB.
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