Gateway XHD3000 User Manual download pdf (Page 57)

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How does HDCP work?

• Implementation of HDCP requires a license obtainable

from the Digital Content Protection, LLC, which then

issues a set of unique secret device keys to all authorized

devices. During authentication, the receiving device only

accepts content after it acknowledges the keys. To

further prevent stealing of the data or line tapping, the

transmitter and receiver generate a shared secret value

that is constantly checked throughout the transmission.

After authentication is established, the transmitter

encrypts the data and sends it to the receiver for

decryption.

What happens if I lose signal to the display while watching

a movie on a HDCP-equipped component?

• The component must be restarted to establish

renegotiation.

For example, while watching a movie on a HDCP-enabled

DVD player, you change the receiving device (DTV,

monitor, or projector) input to watch broadcast TV, then

change the input back to watch the DVD movie. However,

you are unable to watch the movie. This is because when

the input was changed, the receiver lost the HDCP signal.

Restart the HDCP-enabled DVD player to allow

renegotiation.

My computer has an HD-DVD or Blu-Ray DVD player and I

receive an error message when I try to play an HD or

Blu-Ray DVD

• This issue occurs when you have your PC desktop set to

2560 x 1600 (Dual-Link mode) resolution. Currently, PC

graphics cards are incapable of negotiating the HDCP

key while in Dual-Link mode. HDCP key negotiation is

required to play consumer High Definitions DVDs. To

resolve this issue, set your Windows desktop resolution

to 1920 x 1200 before playing your HD or Blu-Ray DVD.

For more information about adjusting settings in

Windows, see “Changing Windows screen settings” on

page 38.

What is the cause if a movie starts and then slowly fades

to static?

• The receiving device is not HDCP compatible or it is not

negotiating correctly. Restart the video source and

re-plug all video cables from the source to the monitor.

How do I know if a component is HDCP compliant?

• If the video source device does not have a DVI or HDMI

connection, it is not HDCP compliant.

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Gateway XHD3000 User Manual Page 57

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