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Mac Mini 2012 video blinking out

153874 Views 1,193 Replies Latest reply: Mar 29, 2014 2:11 AM by knightshade91 RSS Branched to a new discussion.
  • x704 Level 1 Level 1 (0 points)
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    Nov 23, 2012 3:07 PM (in response to klmorin)

    Agreed klmorin, complaining customers are one thing, customers getting refunds are another.  Every time there's a return, apple likely looses money (customer service time, refurb costs), everytime a customer keeps thier defective product (and just grumbles about it) apple has still made money... returning products sends a clear and unmistakable message to Apple, unless they fix thier product they will loose cash.

     

    I'm going to take the plunge today and order another mac mini, hopefully this one isn't defective... if it is, I'll return it too.  This time I'm going to be smart though, I'll install OS on an external SSD drive and do all my setup on it so if I have to return I won't loose all my time investment (if not defective, I'll eventually move it to the internal bay).  I'll keep ordering/returning until I get one that just works, apparently there's at least some out there that do...

  • ivanlee1957 Calculating status...
    Currently Being Moderated
    Nov 23, 2012 3:12 PM (in response to x704)

    Now we are talking...

     

    Vote with your wallet!

  • mfearby Calculating status...
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    Nov 23, 2012 4:02 PM (in response to KevCheng)

    Hmm, seems I'm not the only one. I bought a Mac Mini just over a week ago (switching from 6 years as a Linux user) and my screen suddenly showed "snow" until I turned the monitor off and on again. I'm using an HDMI<>DVI cable because I believed that my Mini-DisplayPort<>DisplayPort cable had died, but I guess it's probably not the cable after hearing of dead Thunderbolt ports on MMs. My monitor is a Dell U2711 27" screen that's probably not quite 12 months old, too.

     

    I've just spent 6 days transferring my life out of my openSUSE Linux PC onto this Mac, and now I guess I'm going to have to face the prospect of sending it away :-( Guess I'll have to fire up Time Machine and get a backup done pronto.

     

    Here's a picture of the "snow":

     

    <Link Edited by Host>

  • MyMac8MyPC Level 4 Level 4 (1,440 points)
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    Nov 23, 2012 3:30 PM (in response to Philip Tyler)

    Philip Tyler wrote:

     

    What did Canon do? They faced it straight on, admitted the problem

    No, they didn't. In fact their official response downplayed the issue and said it wouldn't effect anything. Hardly facing anything "straight on" and "admitting" anything.

     


    Canon has concluded the investigation of this phenomenon, and this announcement informs you of our findings as described below.


    based on the results of extensive testing this change in exposure value will not noticeably affect the captured image.


    Support
    Under almost all shooting conditions (including dark environments) this phenomenon will not affect your captured images. However, if you would like Canon to inspect your camera, we will provide this service free of charge upon request


    So they didn't really admit to anything. They just gave you the option to bring your camera in to get checked if you wanted. Big difference

     

    Returning defective MM is a good idea. That should help them focus on this issue more.

  • MyMac8MyPC Level 4 Level 4 (1,440 points)
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    Nov 23, 2012 3:35 PM (in response to mfearby)

    mfearby wrote:

     

    Guess I'll have to fire up Time Machine and get a backup done pronto.

    Just be aware that Time Machine backups aren't bootable. You'll need to use something like SuperDuper or CCC to do a full backup. Just don't want to see you lose any data

  • mfearby Level 1 Level 1 (0 points)
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    Nov 23, 2012 4:09 PM (in response to MyMac8MyPC)

    I was just wondering the same thing; I used rsync to backup my files in Linux (as well as CrashPlan) and CloneZilla to do the root partition. I think Time Machine is still a good idea but will Carbon Copy Cloner backup/restore a FusionDrive? I would think it should, but this FusionDrive is quite new, so I'd like to be sure. Thanks.

  • MyMac8MyPC Level 4 Level 4 (1,440 points)
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    Nov 23, 2012 4:22 PM (in response to mfearby)

    mfearby wrote:

     

    I think Time Machine is still a good idea but will Carbon Copy Cloner backup/restore a FusionDrive? I would think it should, but this FusionDrive is quite new, so I'd like to be sure. Thanks.

    Both CCC and SuperDuper are "looking into" the matter, but neither feels at this time that there will be any issues. Best to check their websites later next month to be sure.

  • BobH47 Level 1 Level 1 (10 points)
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    Nov 23, 2012 4:28 PM (in response to mfearby)

    My 2.3GHz Mac mini + 16Gb RAM is my main machine. I have a DVI monitor and, having exchanged it on 13th I am making-do with a TB-DVI adapter until a fix is found.

     

    Before making the swap I did a Time Machine backup and it successfully restored my Parallels, Windows 7, Access 2007, Skydrive, DropBox, iCloud, all software, e-mails, files, photos.

     

    I don't have anything swanky like a Fusion drive (I don't actually know what one is) but hopefully I can reassure anyone with a set-up similar to mine that after 2 hours of restoring my 2nd mini was just like my first.

     

    I hope this helps.

  • mfearby Level 1 Level 1 (0 points)
    Currently Being Moderated
    Nov 23, 2012 6:25 PM (in response to MyMac8MyPC)

    Well, thankfully the "issue" (such as it is) isn't that major at this point. I could easily wait a while and see how the problem/resolution pans out. If it's going to mean a return to base fix/swap, then hopefully CCC and SuperDuper (hadn't heard of that one before) will have finished their "looking into" :-) Thanks.

  • mfearby Level 1 Level 1 (0 points)
    Currently Being Moderated
    Nov 23, 2012 8:57 PM (in response to KevCheng)

    I just took my new Mac Mini around to my brother's place and tested my Mini-DisplayPort<>DisplayPort cable with his (Late 2011) Mac Mini and Dell monitor and it worked OK. I then tested my Mac Mini using both his and my cable from my Thunderbolt port to his monitor and don't get any signal.

     

    After getting home just now, I try my Mini-DisplayPort<>DisplayPort cable and U2711 monitor again for good measure, and see nothing. I then plug in my HDMI<>DVI cable (and switch inputs to DVI on the monitor) and it's not until I actually remove my Mini-DisplayPort<>DisplayPort cable that my dell monitor gets a signal from the Mac Mini out of the HDMI<>DVI cable. So, my Mac Mini still knows when there's a cable connected to the Thunderbolt port, it's just that it isn't sending anything through it. This gives me some hope that this could be fixed by a firmware update from Apple in the coming days/weeks? I'm hoping to avoid a return to base.

  • BDAqua Level 10 Level 10 (114,755 points)
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    Nov 23, 2012 11:21 PM (in response to mfearby)

    Intersting info, thanks for the report!

  • mrxad81 Calculating status...
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    Nov 24, 2012 4:28 AM (in response to BDAqua)

    Recieved my second mini i7 yesterday, same hdmi issue like the first one.

    Talked to 2nd level apple support guy. He told me that this is known issue and apple is working on that.

    He could not told me if this problem is hardware or software related. He sent me two tools which i had to run on my mini.

    The names are capture data and timing snoop. I ran both and send him back the protocols. He told me that it will take 3 days after i will get an respone.

     

    does anyone have a mini which runs smoothly without the hdmi issues?

  • MyMac8MyPC Level 4 Level 4 (1,440 points)
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    Nov 24, 2012 10:02 AM (in response to mrxad81)

    mrxad81 wrote:

     

    He sent me two tools which i had to run on my mini. The names are capture data and timing snoop. I ran both and send him back the protocols. He told me that it will take 3 days after i will get an respone.

    Yes, this is standard protocol for Apple. This is also how you know that Apple is taking the matter very seriously. These tools are provided under a single-use license by Apple Support, and they can be requested from Apple in these kinds of situations. Capture Data.app is a diagnostic tool and will generate a file called "ACCD_(your computer name here)_1.dmg”. The more people who send in their data captures, the faster the issue will get resolved. The engineering team is looking for (among other things) patterns, and the larger the data pool that they have to work with from different minis, the quicker those patterns appear.

     

    Ordinarily these diagnostic tools do a total hardware and software dump of the present state of the system at the moment of the capture. Think of it as a snapshot of your system in technical form. The capture file is then sent directly to Apple’s engineering department where they can dissect and interpret the data for the needs of that particular capture. This is very good news and it shows that Apple is not only aware of the issue, but looking for a viable solution. It wouldn't surprise me to see a firmware update forthcoming.

  • BDAqua Level 10 Level 10 (114,755 points)
    Currently Being Moderated
    Nov 24, 2012 10:07 AM (in response to mrxad81)

    does anyone have a mini which runs smoothly without the hdmi issues?

    I don't personally have one, but have a half dozen or more reports from reliable sources of no HDMI problems.

  • sc25893 Calculating status...
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    Nov 24, 2012 12:23 PM (in response to x704)

    I'm having the same problem with 2012 mac mini. Black screen every now and again (?!), sometimes goes snowy (the entire screen for a second or so) when watching a youtube video, and will not calibrate properly to be able to see light greys on websites, everything is so bright even after using advanced calibration.

     

    Using HDMI lead only.

     

    I will try a DVI but this is worrying. What good is a refund to me? Spent £60 on extra RAM and then £680 for the mini isn't going to get me a replacement anything.

     

    This actually makes me laugh a little as I've come from windows after hearing all the fanboys go on about how good apple is... hmmmm, not this time it isn't.

     

    Sam.

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