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Mac Mini 2012 video blinking out

I just got my 2012 Mac Mini yesterday (mid range model) and have already noticed three instances where the video would blink out for about a half second, and then come right back. This happend twice already when I'm connected to a Apple 23 inch LCD monitor via the included HDMI-DVI adapter and once when I'm connected via HDMI to my Samsung LCD TV. Anyone else noticing this happening on their Mac Minis? Thanks.

Mac mini, OS X Mountain Lion (10.8.2)

Posted on Oct 27, 2012 8:08 AM

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1,207 replies

Nov 29, 2012 4:57 PM in response to OldEyes

OldEyes wrote:


sc25893 wrote:


I wish I could have kept the i7 quad core but this is getting ridiculous. Now people are reporting both HDMI and DVI getting the same problem.


Waiting for a fix is just way too risky if you've got the chance to get your money back. You could always hold on to the cash until this blows over and then buy one again. Of course this is only good if you have another machine to work on while you wait!


I have a bad feeling it's the HD4000 itself, not a firmware/software update but a return computer to shop job. I hope not for other peoples sake but I couldn't take that risk.


Sam.

I bought the MacMini 5,3 Server from the Apple Refurb store, and it has the same problem, could this be a software problem because I don't remember any hoopla over this when it came out. HD 3000 chip set. 8 gigs of ram. 2.0 ghz quad core i7


I just dug out MDP to HDMI and plugged it in, had a couple short blinks but no major sync problems.

Spoke too soon just had a major snow screen. I am using a generic MDP-HDMI adapter.

Nov 29, 2012 5:42 PM in response to KevCheng

I came home for lunch to do something else and decided to give the Mini-DP to DP cable another try, and what do you know, it's working today! I am now reminded of how bad my eyesight is because I'm getting 2560x1440 again! However, just to bring up the About This Mac > Displays window to confirm what my resolution was, I got two black screens, each about 1-2 seconds long and both incidents separated by a 1-2 second gap. So it's definitely affecting my Mini-DP/Thunderbolt port. I just don't know how long this will last and I'll have to go back to HDMI to DVI.


BTW, I did take my Mac Mini and cable to my brother's place to test on his monitor and confirmed that my Mac Mini (at the time) definitely was not sending anything through the Thunderbolt port. I have no idea why it has decided to come good again, and I have no idea how long this will last. Very weird. Still smells very lemony to me, sadly :-(

Nov 29, 2012 6:13 PM in response to PackDude

PackDude wrote:


Tiberia, my Macmini has the same model, id, vram, etc numbers as yours. I am having the flickering issue with mine. For those wondering about the different amount of vram, if you have 16gb of memory in your MM, it will increase your vram to 768MB.


Interestingly I only have 8GB of RAM in my MM, so that is really odd that it is now showing 768Mb of VRAM. I wish I knew what my settings were before they replaced the main board. I never really took any notice of the amount of VRAM prior.

Nov 30, 2012 4:40 AM in response to MossyGene

Sorry to jump in on this thread. I literally got a quote for a new MM 2012 yesterday but I am now reluctant after reading this thread. On the other hand I've just read the article posted by woodmeister50 and the article quotes "if you use another input on your monitor instead of HDMI you will be okay until its fixed". Does this mean still using the HDMI to DVI D adapter? If so I should be okay as DVI is all I use.


Thanks

Mac Mini 2012 video blinking out

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