Solved! Hdcp flash on tv what does it mean

[Guest]

picture flashing in and out statin dvi does not hdmi chang to pryp

 

[mrtired]

Your tv and cable box are not exchanging copy-protection information over your DVI connection. May need to simply unplug the power from the cable box and reboot it, or switch to a component video connection. Or get a newer cable box, as they are notoriously garbage.