Retina MBP HDMI port sensitive to cable movement

Discussion in 'MacBook Pro' started by tau101, Aug 22, 2012.

  1. tau101 macrumors member

    Jul 28, 2012
    Hi Forum, I was hoping you could share whether you have had a similar experience with a behaviour I am noticing with my retina macbook pro.

    Occasionally when I have my rMBP plugged into my HDTV via HDMI, and I move the rMBP to place it on a desk or my lap, the signal appears to drop momentarily so that both screens go blue, then reappear as they were. This is annoying, when it happens. I cannot seem to consistently replicate the issue by wiggling the cable around in any particular way. I did have this experience on a couple of occasions with the first faulty rMBP that was delivered to me also.

    It seems strange to me that a HDMI signal could momentarily drop due to movement with the connector still connected to the HDMI port. Has anyone else had this happen?
  2. calderone macrumors 68040


    Aug 28, 2009
  3. tau101 thread starter macrumors member

    Jul 28, 2012
    Yes :) Both very high quality.
  4. Interstella5555 macrumors 603


    Jun 30, 2008
    I generally don't move mine around alot when plugged in, but have had some dropouts when adjusting the positioning (late 2011 15" w/ Moshi Thunderbolt to HDMI). I can see it happening with just the straight connection, but may want to have it checked out if it's happening all the time.
  5. nickholl macrumors newbie

    Aug 22, 2012
    Hi there - I'm having the same problem with my new retina mac. My cable isn't particularly great but have never had problems with it before on my Xbox or hdmi converter. Is this just a general problem with the new macs? Im not really sure I can be bothered to get it sent away to be fixed, but then I would like it to work as best it could :). Did a better cable work or you?

  6. tau101 thread starter macrumors member

    Jul 28, 2012
    I have the same symptoms with two high quality cables. I also had the same symptoms with the first rMBP that was sent to me, which I returned due to dead & sticking pixels.

    I have to say it's very rare, and seems to be easily avoidable by handling with care. I guess I'll just get used to it. It's only a problem when it happens in VLC since I need to restart video to get audio out to HDMI after a glitch.
  7. nickholl macrumors newbie

    Aug 22, 2012
    mmm... well I guess its ok if you dont move it around. It is a little bit dodgy though. I guess thats what you get when you get a first generation of something :(
  8. tau101 thread starter macrumors member

    Jul 28, 2012
    It's fine if I move it around carefully. Even if I jerk it around it seems fine most times. It's a very difficult problem to produce consistently, but it happens with the cable firmly connected.

    Annoying, but acceptable, I feel.
  9. nickholl macrumors newbie

    Aug 22, 2012
    Mmm. Mines a little easier to replicate it seems (at least in vlc anyhow, haven't tried in anything else yet). Guess its not the end of the world
  10. gxgrant macrumors newbie

    Mar 14, 2014
    I have been having the same exact problem. Tech support on the phone told me to go into the store for testing..what a huge waste of time/effort!! I ordered some thinner/lighter HDMI cables ..maybe the beefy cables I have in there now are too heavy and not allowing a solid connection into the socket.
  11. Samuelsan2001 macrumors 604

    Oct 24, 2013
    I use a mini DP to HDMI cable and it's fine from the thunderbolt port
  12. Falcon9 macrumors regular


    Jun 17, 2015
    Eastern Canada
    I have my rMBP connected to an external monitor most of the time via HDMI and have never experienced the issue you're describing. Sounds like you have a faulty port... Have you tried using a thunderbolt to HDMI adapter instead?

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