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Receiver Switches to TV Input After a Few Seconds - HDMI-CEC

Discussion in 'TiVo Roamio DVRs' started by gfgray, Feb 25, 2014.

  1. gfgray

    gfgray Member

    Mar 14, 2004
    If your receiver switches to TV Input (instead of staying on the input that the Tivo is connected to) after several seconds after turning your TV on, this is the explanation. The Tivo does not support HDMI-CEC. When a TV that supports HDMI-CEC does not detect that a HDMI-CEC compatible device is connected, it will tell a HDMI-CEC receiver to switch to TV Input.

    You can disable HDMI-CEC. But that will also disable ARC. And you will have to add another cable to get audio from the TV to the receiver.

    The best solution is for Tivo to implement enough of the HDMI-CEC spec to keep the TV from deciding to change the receiver's input.

    There are other threads complaining about the lack of HDMI-CEC support in the Tivo. I am detailing a real world problem that this is causing. This is going to become more and more of an issue as people buy new TVs that support HDMI-CEC.

    Here is another thread with further explanation and additional work arounds:
  2. anthonymoody

    anthonymoody New Member

    Apr 29, 2008
    CEC is a **** show in my experience. It's a "standard" in the sense that there are guidelines, but implementation from mfr to mfr can result in all sorts of wonky behavior - and that is where devices are CEC compliant. It gets even more annoying with devices like the TiVo which aren't.

    Thank god for Logitech remotes.
  3. monkeydust

    monkeydust New Member

    Dec 12, 2004
    I had the same problem on my Denon/Samsung. I had to turn that functionality off on my TV.
  4. gfgray

    gfgray Member

    Mar 14, 2004
    I am Denon / Samsung also. Maybe this is a "feature" when you mix these two brands... I wish someone made a little adapter to add CEC functions to a non-CEC device (and charged less than $50)
  5. knox

    knox New Member

    Jul 3, 2002
  6. Jun 9, 2014 #6 of 17

    jay_winter P4+P4XL+Mini+FIOS

    Jan 13, 2004
    Richmond, VA
    Knox -- This could be earth-shaking news!

    Are you saying this thingy can make a TiVo box look like an HDMI 1.4 CEC device? Have you tried it?

  7. ss-stingray

    ss-stingray Sony DHG refugee

    Aug 24, 2013
    My Samsung did this also this week. Don't know why after having the roamio and tv for months. I went to TV menu and saw an unchecked box for a set top box. After checking box TV stopped changing to antenna . Weird ??
  8. geogolem

    geogolem New Member

    Nov 16, 2014
    I think this is happening because the TIVO lacks HDMI CEC support...

    I am having the same problem.. and cannot find a solution. very annoying.
  9. aaronwt

    aaronwt UHD Addict

    Jan 31, 2002
    HDMI CEC is one of the first things I disable in my devices when I set them up. I use Harmony Remotes to turn things on/off and change inputs so I have no need for it anyway.
  10. HoustonMidtown

    HoustonMidtown New Member

    Jan 15, 2011
    I had the same issue with my Sony....I just moved the HDMI cable to a different port and the problem went away..
  11. nooneuknow

    nooneuknow TiVo User Since 2007

    Feb 5, 2011
    Cox Cable...
    There is one vendor I recall selling HDMI cables with the HDMI-CEC wire specifically not connected, just to deal with incompatibilities, and products not complying to HDMI-CEC specs on voltage levels.

    If a market exists enough, that such a cable exists, it says a lot about problems people are having with what that cable eliminates.

    If I worked in tech support (hypothetically), I'd much rather send a customer such a cable, than walk them through disabling it through all the different TV menus...
  12. aaronwt

    aaronwt UHD Addict

    Jan 31, 2002
    But if a person can't figure out how to turn it off in the menus, then they must be one of the "VCR flashing 12:00" people. All people need to do is read the instructions.
  13. nooneuknow

    nooneuknow TiVo User Since 2007

    Feb 5, 2011
    Cox Cable...
    As somebody who used to work in support, and knows many people, personally, of the flashing VCR type, I can assure you there are plenty of people who only open the manual to initially set something up (if even then), then throw it in the trash (or some location that will remain unknown for the next x years).

    As I often must remind myself (and remind you), not everybody has the skills and mindsets that we do. I may not open some manuals, before setting up, but never throw them away, and do try to keep their locations known.

    Those who don't sell their old electronics, to offset the cost of the new stuff, tend to discard everything but the actual product, and what they needed to set it up (if they even set it up, as opposed to having somebody else do it for them).

    Of course, I doubt the classes of people you seem to think are extinct, would ever know such a cable existed, without it being provided for them (and still may not know why that particular cable works for them).

    TiVo users are an odd lot, when it comes to what walks of life have them. A working TiVo is actually easier for the technology-impaired, than a VCR, when the power goes out. There's a valid reason why TiVo asks everybody to power cycle everything, before providing other support. It's insulting and irritating to us who are both experienced, and up to date with things, but necessary.

    While I don't work in support anymore, I don't miss it (some of the stories I could tell would sound like prank calls to you). Although, if you let people know you can be a source of support, it can become an unpaid, ongoing role.

    Perhaps the folks who have no idea how the magic picture box and magic tapeless recording device works, who never even change the TV input, will be extinct in a few decades, but that only covers 1st world countries. ;)

    ETA, from another HDMI-CEC thread:
  14. gfgray

    gfgray Member

    Mar 14, 2004
    If I wasn't clear in the original post, I need ARC because I don't have an audio-only cable running 50ft to my receiver. Disabling CEC also disables ARC.

    For those of you who don't understand why we are complaining, after a couple seconds, the TV tells the receiver to switch to "TV Input", but it leaves the TV on "HDMI Input". Result: after turning the TV on, everything works fine until a few seconds pass, then no video and no audio until the receiver is manually changed back to "HDMI Input". It is maddening.

    Pulse-Eight still does not have a 3rd party solution.... Hopefully Tivo will implement HDMI-CEC in their 4k box so that Tivo will play nicely with other equipment if for no other reason.
  15. fred2

    fred2 Member

    Jan 20, 2006
    I wonder if this is PART of my problem. I use a Harmony remote (older not sure 720???). My TV is using ARC to connect to a Yamaha receiver (that is the only connection between the tv to receiver (receiver to tivo). Using the Harmony I "turn on" the TV (tivo is on obviously). I use the receiver although I don't think I have to turn it on (arc?). For a few seconds all is right but then I lose the audio (but NOT the video) I see it change the hdmi port. I've added a few seconds (milli seconds??) to the Harmony command string to re-establish the correct hdmi. So, I get audio/video for a bit, then the audio cuts out, then the command is sent again and audio reestablished. But on occasion the audio stays off and I have a harmoney button assigned to "fix" the hdmi.

    I did a bunch of fiddling to get this working and could not figure out what was blowing the audio. I worked it over and over and there was nothing in the command string to break the audio/hdmi port but it was broken nonetheless. Until I finally threw in the delay and another "this hdmi (stupid!)" command.

    I see this cec in Tools for the tv but the only things it shows is a dvd player. I really don't know what cec does or NOT!
  16. JoeKustra

    JoeKustra Cable only TCF Club

    Dec 7, 2012
    Ashland, PA...
    So read:

    I never use it.
  17. gamo62

    gamo62 Member

    Oct 12, 2002
    TiVo has always been behind in technology. They still don't have a 4k solution. So the lack of CEC support doesn't surprise me. They're more interested in adding tuners and storage, than they are in keeping up with technology. Case in point. How long did it take for them to FINALLY add Amazon prime?

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