Forum Discussion

otterbay's avatar
otterbay
Contributor
5 years ago

HDCP/HDMI incompatibility warnings - obviously incorrect, where do we start to eliminate the warnings? All equipment is HDMI 2.2 compatible. Why is the Contour box throwing up random errors which last only a second...

Just as the title says, HDCP/HDMI incompatibility warnings - obviously incorrect, where do we start to eliminate the warnings? All equipment is HDMI 2.2 compatible. Why is the Contour box throwing up random errors which last only a second...

TV is a post 2014, Samsung, so it complies with HDMI 2.2.  Why is the Cisco 8742 throwing up these short, random warnings which disappear, only to jump up for an annoying split second?  And if you’re going to say “maybe an HDMI pin is broken or loose”, then no, that’s not it.  Also, if you suspect an HDMI cable isn’t compatible, then suggest specific manufacturers and specs as opposed to generalizations please.

I’ve tried two, different Contour set-tops as well - same result.

  • KevinM2's avatar
    KevinM2
    Former Moderator
    5 years ago
    Hi Otterbay, this could be a possible HDMI handshake issue. This can be caused by a variety of things, such as HDMI cables that have damaged pins, the cable not conforming to the correct HDMI specifications, or poor HDMI connection. Have you tried completing the following steps?

    1. Test another HDMI cable.
    2. Make sure that the HDMI cable fits securely in its port and that there are no sharp bends in the cable.
    3. Make sure you are allowing enough time for the HDMI renegotiation process. Switching inputs, waiting for at least 10 seconds, and switching back to the HDMI input is usually enough to reestablish a good HDMI handshake.
    4. Make sure your TV and all of your audio equipment have the latest firmware. The manufacturers of your TV and audio equipment are good sources of information and assistance with HDMI handshake issues.

    -Kevin M. Cox Support Forum Moderator