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ADV7441A VERT_FILTER_LOCKED bit stay low

Question asked by Vid123 on Oct 26, 2011
Latest reply on Nov 1, 2011 by DaveD

Hi All,


This is rather a broad & trivia question: 


**What would possibly cause the VERT_FILTER_LOCKED bit stay low (not locked) ?


This is the HDMI map - register 0x07 - bit[6] - Please refer to HW Manual rev J- page 59



PS.  The reason I ask this question because we were reported a case when an unknown video works fine on a unknown monitor, but when the video fed to the ADV7441A (of course on our board), the VERT_FILTER_LOCKED stay low...   This happens on the field and we were reported with these info... it's impossible to duplicate what happens with the Eval board...