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HDMI (receiver) causes Tivo reboot?

Discussion in 'TiVo Help Center' started by vip007, Jun 30, 2013.

  1. vip007

    vip007 New Member

    Mar 21, 2012
    I experienced something that I consider rather odd:

    My Tivo (Elite) suddenly started to misbehave and apparently not respond to remote commands. It then rebooted and kept rebooting. So I called Tivo tech support and they decided the unit would need to be replaced.

    Luckily, I had an old Tivo HD so I plugged it in and this unit also kept rebooting. Long story short, I finally linked this to the HDMI ports on my receiver. For some reason, connecting to any receiver HDMI would cause Tivos to constantly reboot. A reboot of the receiver fixed the issue.

    I again called Tivo to cancel replacement request and also asked tech support why HDMI would cause reboots. Got a bunch of nonsense answers such as "Well, HDMI is a good protocol but you need to check your power strip etc"

    Does anyone know why HDMI would be causing Tivo reboots? It was certainly not affecting other HDMI connected devices (e.g., a BluRay player).
  2. ThAbtO

    ThAbtO TiVoholic by the bay

    Apr 6, 2000
    SF Bay Area
    It might be your cable input coax, it might be coming in too hot (strong). Try unplugging temporarily and see if the reboots stop. If it does, you will need some attenuators to bring the signal down enough for the Tivo to handle.
  3. mr.unnatural

    mr.unnatural Active Member

    Feb 2, 2006
    My older S2 Tivos used to reboot if I connected or disconnected the USB ethernet adapter while it was powered on. It sounds like you're getting the same kind of response when connecting or disconnecting the HDMI cable.
  4. vip007

    vip007 New Member

    Mar 21, 2012
    Let me try to clarify:

    1) The reboot was not linked to coax/cable signal.

    2) As for HDMI, it was also not linked to the action of connecting or disconnecting the HDMI cable (so to say). This was a constant connection (and a constant reboot.) Clearly, some signal was being passed from my receiver (Denon AVR-2112CI) through HDMI to Tivos that Tivos did not like. Maybe the ground was not good?
  5. philhu

    philhu User Since Day ONE!

    Apr 11, 2001
    Funcity, MA
    HDMI is a digital protocol, like any other computer protocol. If your receiver, which is really a computer, starts sending bogus items during the handshake protocols, it can cause a crash if the tivo doesnt error check the protocol data received.

    If you think of everything now as a computer, with firmware, it all makes sense.

    My biggest problem with stuff like this is that if you tell them in customer service (any company, not just Tivo), how to fix it or what causes it, they do not tell the people upstairs. And alot more people end up hurting

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