Table of Contents
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Troubleshooting HDCP errors
Common problems
Running HDCP test in manual mode
Understanding the HDCP test
10
Chapter 2 Testing HDCP-Compliant Devices
This table describes possible solutions to problems that may occur during HDCP testing.
Problem
Test fails at step 3
HdcpProd image flashes repeat-
edly at step 9
The generator normally runs the steps in the HDCP test automatically. If the test fails, the
test is restarted after a few seconds, which makes it difficult to read values at the step
where the test failed. All HDCP tests have a manual mode, which you can use to pause the
test after each step.
To run the HDCP test in manual mode:
1. At any step during an HDCP test, press the Step button.
2. Turn the Image knob to advance to the next step. If you are using an PCI-based
generator, use the commands displayed on the screen to advance to the next step.
3. Press the Step button again to return to automatic mode.
Understanding what the generator does during an HDCP test can help you determine
why an HDCP test failed.
Test sequence for Broadcom transmitters:
1. The generator resets the transmitter and its HDCP engine.
Solution
Transmitter could not read Bksv from the receiver,
Bksv was read correctly but is a wrong value, or an
I2C error occurred.
If the EdidData image loads, the I2C communication
is working properly.
Verify that the Bksv value is 5 bytes (that is, 40 bits of
which 20 zeros and 20 ones) by reading the value from
the test image.
Restart the generator while holding down the Out-
puts button, which starts the generator in "Reset
HDCP Rx by gating clock" mode.
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