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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 6, 2012 5:55 AM in response to Martin Naegeli

Dear all

exchanging RAM (take out factory 2x2gb and replacing by 2x8gb and 1x8gb) didn't bring anything.

Apple is currently sending another MacMini and we all hope, this was just a btach of faulty Intel 400-boards...


cheers

Sheerkhan


(btw. Support and Technical Departement sometimes know of the problem, sometimes deny it and sometimes...well never mind 😉)

Nov 6, 2012 12:07 PM in response to KevCheng

I bought a Mac mini 6,2 last friday and I also have the blackout problem since day one. Happens about once every two hours. The blackout usually lasts less than 1 Second. Sometimes the blackout is followed by the snow screen which will only go away if I cycle inputs or cycle power on my monitor. I am using a Samsung P2450 connected via the hdmi-dvi adapter.


The blackout also happens in Bootcamp with Windows 7.


I would be very interested to know if I have to swap my mini for a new one or if this is something that can be fixed by a software update.

Nov 6, 2012 12:49 PM in response to KevCheng

I'm getting the blank/snowy effect issue if using hdmi > hdmi. I'm also getting the colour profile issue, but I've calibrated that to an acceptable level until a permanent fix is released. I used Gamma Control http://michelf.ca/projects/gamma-control/ and followed instructions from another forum http://forums.macrumors.com/showpost.php?p=16226080&postcount=11.

Nov 7, 2012 5:40 AM in response to KevCheng

Any word yet if replacement minis are fixing the issue. If I am to replace it I would like to do it before the two week exchange period is over.


I removed a Ram chip and ran for a day with the same screen flicker. worked last night and it happend 4 times in 3 hours. The last flicker of the three was longer than the others. Around 4 seconds.

Mac Mini 2012 video blinking out

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