1 7 8 9 10 11 Previous Next 431 Replies Latest reply: Jul 5, 2014 6:14 AM by KAKAMAMA Go to original post
  • 120. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    MyMac8MyPC Level 4 Level 4 (1,440 points)

    Ciccilleju wrote:

     

    they should think about a new hardware fix or implementation - like, putting together a team of engeneers, developers etc to fix this.

    They've already been doing that for at least a week now.

  • 121. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    MyMac8MyPC Level 4 Level 4 (1,440 points)

    calvol wrote:

     

    This issue with the HD4000 GPU has been ongoing for 6 months, and it's doubtful there is a firmware fix (Intel MRC 1.5 and 1.6 did not fix).  Apple will try a workaround to accommodate synch issues that may or may not be a global fix for all HDMI devices.  A band-aid that will not make everyone happy.

    I agree 100%. The HD 3000 and HD 4000 have always been plauged with issues. Why Apple chose to use it only God knows.

  • 122. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    andypanoreo Level 1 Level 1 (0 points)

    I also have this "snow" issue with my week old MacMini 2012.  I first thought that it was a RAM issue but after reading some of the user's post, I'm aware now that it may be an issue that a firmware may fix.  Hope it does and when is released, it really fix this issue.

  • 123. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    Hopsingh420 Level 1 Level 1 (0 points)

    I also am having this issue with my two day old mac mini 2012

  • 124. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    Zuul77 Level 1 Level 1 (0 points)

    Hi

     

    Just wanted to update you all that I've bought a thunderbolt hdmi converter from eBay for £3.50 and haven't had any dropouts since. Just before using this I had 3 dropouts in 1 hour using the same hdmi cable in the hdmi slot and absolutely no dropouts for the following 5 hours using the TB to hdmi converter

     

    Hope it helps

  • 125. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    demicrown Level 1 Level 1 (0 points)

    I, too, have encounted the black screen issue with my new mac mini (connecting the computer and monitor directly with an HDMI cable). A call to Apple led to a representative telling me that he hadn't heard of the problem and I should try an update (I am already at 10.8.2). He then suggested trying a different HDMI cable or return the computer.

     

    Just for fun, I swapped out the HDMI cable with one I use with my TV. The problem actually worsened. Instead of just a couple of seconds of a black screen, the screen went staticy and I could not get the picture back until I unplugged and replugged the cable. I went back the original HDMI cable I had been using and the problem seems to have lessened.

     

    Not sure what the take away would be from the anecdote. Just adding my experience to the collective while I hope for a fix from Apple.

  • 126. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    Kvorum Level 1 Level 1 (0 points)

    A cheap tunderbolt->dvi adapter cured blackouts in my mini.

    This time i got a non-apple adapter to avoid possible problems :-D

  • 127. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    iohanna Level 1 Level 1 (0 points)

    I had the same problems on my new mac mini. I brought it back to the shop today. They knew the problem and replaced the machine. Unfortunately the new model shows the exactly same symptomes

  • 128. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    Blue Smoke Level 1 Level 1 (0 points)

    I'm wondering if people are having any luck with the HDMI port or not.  Maybe it works more reliable if using a specific type of HDMI cable?

  • 129. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    PeterLV Level 1 Level 1 (0 points)

    I can only say that in 2 weeks I had one episode of snow for 1 second, self fixed.

    I'm using HDMI with Ethernet cable.

  • 130. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    BobH47 Level 1 Level 1 (10 points)

    Whatever luck anybody may or may not have had with the HDMI port, it is important that you log a call to AppleCare.

     

    It is clear from reports around the world that many people are having problems with the HDMI port. It doesn't matter whether it is to a HDMI monitor or via an adapter to DVI, the common link appears to be the HDMI port.

     

    We don't know if all 2012 minis are affected and people who have never used the HDMI port will probably have no idea if they have a faulty mini or not. From what I can deduce, the Thunderbolt port works fine.........?

     

    In some cases people are exchanging machines with the supplier who supplied the original. Logic would suggest that unless the supplier has very high turnover or the delay between purchase and exchange is long (and it can't be more than a month at the moment), then it is highly likely that the replacement mini will be from the same batch and have the same fault.

     

    A month in, responses from Apple appear to differ with some people knowing about the problem, and some not. That makes me think that Apple may not yet have issued a circular to all AppleCare agents and Apple Stores - or not everybody has read it.

     

    Before someone jumps down my throat, all this is conjecture, but I believe it to be well founded based on this and other threads.

  • 131. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    MyMac8MyPC Level 4 Level 4 (1,440 points)

    BobH47 wrote:

     

    it is highly likely that the replacement mini will be from the same batch and have the same fault.

    Can't happen. All of the returned minis will become refurbs.

  • 132. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    vcdiaz Level 1 Level 1 (10 points)

    Luckily I don't have sync issues, but was experiencing the poor resolution, poor colors and text issues as others. I bought a 2012 core i5 MM to replace a 2007 Core 2 Duo MM. The 2007 MM was connected with a DVI-HDMI cable and was sharp. I connected the 2012 with an HDMI-HDMI as was poor. I solved my issue with a MDP-DVI adapter. My monitor only has VGA and HDMI inputs. Ordered a couple of MDP adapters online, and the MDP-DVI adapter solved the issue; and the image is same or better as before with my 2007 mini. Need to point out that I also ordered a MDP-HDMI adapter, and it did not work, same issues as the HDMI out. For some reason the HDMI-HDMI connection has issues. Now will wait to see if Apple fixes the issue. Also with the MDP-DVI adapter, I don't have to underscan. I use the 1920x1080 resolution with no underscan; with the HDMI-HDMI connection I had to underscan, which is part of the problem because it creates blurry text.

  • 133. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    efeigenb Level 1 Level 1 (20 points)

    I logged the issue with Apple.  After trying all the standard things (SMBC reset, zap the PRAM, Disk Utility, use a new account), the issue remained.  I was transferred around to a few techs who all said this was the first they were hearing of this and ignored my claims that it was very active on the forums.  Finally got a tech who said he had heard of the issue and actually searched the forums and read about it while on the phone with me.  He said, "To be honest, it looks like this is an emerging hardware issue and there seem to be a lot of people with the same problem so I think Apple will be hearing about it.  Your best option is to call us back once a week to see if we have a fix.  In the meantime, I have logged your issue."

     

    So there's no fix now, but at least an acknowledgement of the problem from Apple.  Stay tuned!

  • 134. Re: Mac Mini (2012) HDMI losing sync (blank screen/snow)
    BobH47 Level 1 Level 1 (10 points)

    It already has!

     

    I think we need to trust each other's experience! I bought my mini through a store on 5th and exchanged it in the same store on 13th.

     

    They had not heard of the problem, had not had any returned and just gave me a brand new machine from stock!

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