Mac mini only sometimes displays

i have a 2014 mac mini, intel iris graphics, 16 gb of ram and a 3.0 GHz i7 processor. a lot of the time my mac mini will display fine with no issues. but sometimes i turn it on and it just says no signal indefinitely, and i have to turn it off and on again dozens of times before it will finally display something. other times i wake it up from sleep and the image will be distorted or just snow. this is my first mac, and right now i'm thinking it could be my last.

- Run Apple Hardware test
Using Apple Hardware Test
- Try another monitor and cable
- Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar

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I have a Symphonic 32' HDTV (Dolby Digital Plus). can someone help me figure out how to configure it optimally with my Mac Mini? the display and sound is off. Do I need drivers/software? I'm new to macs.

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I am going to buy a mac mini i7 with 3 thunderbolt displays for forex trading. the question is if i use bootcamp and run windows on the mac mini will the displays still run the same way as if i was running it on Lion?

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I have just switched from windows and bought myself a new mac mini, only had it a few weeks and already getting message not enough free space. Help, surely cant be out of space already

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BDAqua wrote:
....but some other new Macs will boot frome a clone of 10.6.8...
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hardware (HD4000, USB 3.0, etc.) that is totally unsupported in old OSes.
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running 10.6.8. I'm sure there will be some performance hit but whether it would
be enough to be unusable is the question.

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Brand new Mac mini ONLY displays when waking from sleep

Have an unusual problem.
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Thanks.
DJ Horton
Message was edited by: DJ Horton

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Mac Mini + A1038 Cinema Display does not work

Hi,
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Hi everyone!
Well.. i can say that, this is my first Mac computer and i already have problems. I have read a lots of comments and i have seen that many people experienced this problem with Mac mini, like display corruption, not property colors, flicking, display goes off and back on... or just standing on sleep and not turning on. (like Mac mini 2012 or 2011.. i have read about same issue..) so whats really happen?
So, from the peoples comments i tried possible solutions:
SMC Reset
I have Reinstalled the OS X Yosemite (complete HDD format)
I have changed the cable
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Some detail about my connection:
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I have connect it via miniDP to DP > to > Dell UltraSharp U2713HM
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Waiting or a response,
Best regards.

Update: I'm coming back with a possible tip for fixing this issue (I hope Apple Stuff will notice this.)
So, how i said in the previews message.. the Image corruption / and going Off and On the display happens mostly when i'm connecting the iPhone. Theory tested a few times, and take a guess.. it's true.
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Receiving messages from iPhone to Mac / Sometimes display goes Off and On
Receiving a Call via FaceTime to Mac (from your iPhone carrier) / Image corruption / Screen Off and On
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HELP!!! Someone?? Anyone?? Bueller??
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Wow, once response at a time please! The issue ended up being a faulty mini disply port to vga adapter cable, $30 fix.
Thanks Apple Retail in Doncaster - although it's a shame your sales staff arent as good as your support staff!

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Hello,
I recently changed monitor configurations and in the process moved my Mac Mini (Mid 2011) to a HP LP2065 monitor. The connection is made through the stock supplised HDMI to DVI adapter.   The monitor and the DVI cable work successfully with other machines.
What occurs is only certain colors, usually black, result in the display being red and/or sparkling and/or static (like TV static) when the monitor is set at its native resolution of 1600x1200.
If I bump the resolution down to 1280x1024, or lower, the black color returns and I see no display glitches.   If I bring the resolution back up to 1600x1200, the display artifacts return.
A few google searches suggest I use a DisplayPort to DVI adapter instead as some monitors are "finicky".   Does anyone agree with that? It seems peculiar to me -- why would a digital signal have analog-looking glitches?
Any ideas welcome.. thanks for reading

Your monitor has a native pixel resolution of 1920x1200. There is no point in trying for 1080-p or -i.
I run two 1920x1200 monitors via HDMI (with passive cable adapters where necessary) and I use these choices:
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Hi
I have a new-to-me current model Mac Mini and want to use it with my 20" Cinema Display (model A1081).
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Can anyone confirm it's OK to use DVI>Mini DisplayPort connection to drive the display?
TIA
Jim

Thanks for the reassurance BSteely!
One thing I've seen when rummaging through the forum is a suggestion that with MDP>DVI adapter is problems with display waking from sleep. Short of setting it not to sleep, is there a workaround to wake it up again if it doesn't respond to usual stimuli?
TIA
Jim

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Were you able to get your display working? I have an LG 27" at home connected to a Mid 2012 (June) MacBook Air 13" that has absolutely no issues. However, I just obtained the same Samsung monitor you have and appear to be having the same issue.
The only solution that I have found is to unplug the power from the back of the monitor or at the power supply each time my computer either wakes from sleep, screensaver, or a display that is powered off. This seems to be true via the following connections:
1. HDMI to DVI thunderbolt adapter
2. HDMI to Thunderbolt adapter
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Mac mini only sometimes displays

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