Currently Being ModeratedApr 21, 2013 10:45 PM (in response to Amrut223)
Hi, I had many issues with mine (not sure of its manufacturing year). They say there is a firmware patch:
to check if yours is uptodate:
Boot ROM Version: MM61.0106.B03
I had issues with display with my new unit. I took it to the store for memory upgrade (from 4GB to 8GB) and I also complained about the display. After bringing it home, it worked out fine. Not sure if they applied a firmware update or not.
Lots of people are complaining about MAC mini display issues. I have tried many things. I got my self two extra adapters. It worked with miniDisplay to DVI. I also got a miniDisplay to VGA that I never used. However, I did change my DVI cable from Single Link to Dual link (DVI-D). I am not sure how to apply the firmware update yourself. Mine is Dell S2340M. Was bad, became good. I am currently using the original HDMI to DVI adapter with the new dual link DVI cable. Other than that, check the "engergy saver" settings and increase the delay for display turn-off from 10min to 25min.
All of the above helped, but going to the store was the main solution. I will let you know about what they have done tomorrow, I still do not know.
Currently Being ModeratedApr 21, 2013 10:48 PM (in response to AnalogIC)
Thanks for your reply! I have called the store from which I purchased the Mac from. They have agreed to swap it out no questions asked as it is within the first 30 days. I have however just performed a SMC and PRAM reset and so far so good.
I will keep an eye on it for the next 25 days and if it continues I will have it swapped.
Keep me updated on your issue .
Currently Being ModeratedApr 22, 2013 1:44 AM (in response to Amrut223)
After performing the PRAM and SMC resets my Mac mini still has random flickering issues. I have called my Apple Reseller and they have agreed to replace the unit no questions asked (without testing) which is great!
I will update the thread once I receive my new unit and test it for a few days. If the flicker is present on the new device it is an issue with OS X 10.8.3 or EFI 1.7.
My screen is in perfect working order under windows and linux and I have a new Crest HDMI cable so it isn't a budget cable or anything like that.
For future reference my hardware is follows,
Samsung SyncMaster S24B370H over HDMI
Mac Mini 2012 i5 2.5ghz 4GB Ram 500GB HDD
Seagate 2TB USB 3.0 External HDD
Logitech G400 Mouse
Edifier C3 2.1 Speakers
Here's hoping all is well with the new unit!
Currently Being ModeratedApr 22, 2013 4:47 AM (in response to Amrut223)
They have had screen issues with the 2012 Mac Minis for a while now. This is not new but it is a known issue. I seriously doubt a replacement mac mini will help. Since it is under the return policy period go ahead and try another one but keep a close eye on it before you go over the 14 day return policy. DL 1616 update was suppose to fix it but it falls short of doing that.
You can read more about all the snow, flicker, blinking screen issues on the 2012 Mac Mini from various sources on the net or even here at this forum as far back as November 2012, it is now April 2013 and the complaints are still coming in. PRAM update is a temp fix, before you know it the issue will creep up again, hopefully you catch in time.
Currently Being ModeratedApr 22, 2013 5:12 AM (in response to Amrut223)
The real problem with the Mac Mini I believe is with its graphics card, the "Intel HD Graphics 4000". The software work around is not a fix and until they dump the "Intel HD Graphics 4000" the Mac Mini is stuck with this issue.
Here are just a few of the same complaints with the same Intel graphics board:
Currently Being ModeratedApr 22, 2013 11:27 AM (in response to Amrut223)
I would suggest to take your Mac Mini to the store along with your monitor. Talk to them to test your monitor at the store. Check your memory usage and see if the "free" memory became too small for comfort for the display. If you run graphical applications, then double check that the "free" memory is not diminished (you can check on that using the system monitor, the inactive section tells you have much you have used when you were running the app).
My screen was not showing vertical lines, but, it would flash every once in a while a long with terrible looking text and graphics.
All gone after taking the mini to the store. I had the memory upgraded which is shared between the processor and the graphics. I personally think that 4GB is way too small for the mini.
In my opinion they should sell the mini with 8GB minimum with a price that is $100 less than the current price tag.
It is overpriced and many display issues reported. My issues are gone. Replacing the unit should not fix the issue as it seems the problem is in the design somewhere (hardware/software/firmware).
I did not hear back from the store yet.
has anyone updated to the latest firmware, increased their memory to 8G.B. and still having problems?
Currently Being ModeratedApr 28, 2013 12:23 AM (in response to Amrut223)
This snow issue with the Macmini has been around a long time since my Mini is a late model 2009 and no one from Apple has figured out yet why this occurs.
Obviously the computer is sending the wrong signal to the monitor so it has to be Apples responsibility to correct this issue.
I'm wondering if this HDMI adapter is the problem or it could even be the Port the adapter plugs into but have read posts where changing the adapter didn't help, so, I'm at a loss for a possible fix with that.
But, I used to just let the monitor correct itself, which it did after about 2 to 5 minutes.
But now I just turn off and turn back on the Monitor and it corrects itself immediately.
And as I have suggested moving the sleep time up to 25 min from 10 helped me but it did not help everyone so here I sit with the same loss of an explanation for why this occurs in the first place.
I'm using a wired Mac keyboard for those wondering and I only run into this snow issue now about once every 6 months.