AnsweredAssumed Answered

Snow screen after HDCP authentication

Question asked by prasannakarthik on Jun 15, 2016
Latest reply on Aug 1, 2016 by JeyasudhaMuthuPerumal

Host HDMI Tx HDCP authenticates ADV7619 receiver at bootup.

On some bootup, After HDCP Part1 successful authentication, it shows snow screen.

There is no failure reported about authentication to HDMI tx when the snow is seen.


Screen recovers to original video out by re-authentication or hotplug.

BCAPS initial setting on receiver is 0x83.

Here is the analyzer report.

Part 1 : R0 matches, Authenticated

Part 2 : No repeater so skips part2

Part 3.  Receiver ADV7619 sends Short form reads "Ri' = FB". Tx is not notified of any authentication failure

             when snow is seen