Quantcast

HDMI CEC Theory

Discussion in 'Vizio Co-Star' started by gkamieneski, Mar 11, 2013.

  1. gkamieneski

    gkamieneski Member

    Joined:
    Nov 14, 2012
    Messages:
    58
    Likes Received:
    4
    Trophy Points:
    8
    My Vizio TV and the Co-Star both can be enabled for CEC through HDMI. In theory, does that mean that if they are connected through HDMI cables, that turning off the TV with the TV remote can also turn off the Co-Star unit at the same time? I would have to enable CEC on both units.

    If this is a possibility, it would seem to me that my xfinity STB remote which is capable of shutting off the STB and TV with the one button, would also turn off the Co-Star by extension?
     
  2. john30308

    john30308 New Member

    Joined:
    Jan 24, 2013
    Messages:
    43
    Likes Received:
    16
    Trophy Points:
    0
    Yes, that's how CEC should work. Be sure you have up to date HDMI cables. I think you'll need v1.4???
     
  3. Amuzeme

    Amuzeme New Member

    Joined:
    Nov 10, 2012
    Messages:
    31
    Likes Received:
    26
    Trophy Points:
    0
    In theory, yes that's how it should work. The reality for me is that the costar has to be turned off between 5-10 seconds BEFORE the TV. If it isn't, then the costar goes into some kind of weird hibernation/sleep mode and won't respond to the remote. To turn it back on I have to unplug and plug back in the power cord.
     
  4. gkamieneski

    gkamieneski Member

    Joined:
    Nov 14, 2012
    Messages:
    58
    Likes Received:
    4
    Trophy Points:
    8
    Yes, when I looked up the CEC specifications for HDMI it didn't sound like On/Off was one of the controllable functionalities. All I can do is ask if anyone here has had any success with this? HDMI with CEC seems to have been certified with HDMI 1.3 but maybe HDMI 1.4 is really required.

    Anyone out there doing this? thx
     

Share This Page