Mac mini 2014 won't wake monitor via HDMI

Wow, long thread..

I'm having the same problem on my Acer K272HUL / MacMini (Late 2014) with the sleep issue.. I'm also having an issue where I cannot change the brightness on my Mac keyboard, no effect from either key.

The same here with brightness and Contrast. On-going case with Apple update: jumped through final hoop of different tests Apple have asked me to do over the weeks. I then explained this forum again to the advisor, especially the many complaints now and the case numbers on here. He is going to feedback to engineers and let me know next week. They can't avoid this any longer...

I intermittently experience the same distortion when I wake up my 2014 Mac Mini using a VGA to display port connection (VGA LCD monitor).

No solution yet? In that case, I need some advice.

I bought my MM just 3 days ago (Jan 4) and noticed the same problem.

MM to monitor via HDMI to HDMI. I updated to 10.1.1, reset SMC, reset PRAM, and verified that the issue eve gets worse in Safe-Mode. Planning to go to the Apple Store on Saturday, but now, I've got a dilemma...

Do I, exchange the unit for a new one (because clearly it's not working as advertised), OR should I just simply return the unit for a refund and wait it out? The only issue is that I'd really like to start moving away from my 2007 iMac.

Either way, I don't plan on going home with the unit I originally bought... I mean, c'mon... out-of-the-box, and I'm already resetting things like PRAM and SMC?

I'm also hesitant to buy a MiniDisplay-to-HDMI adapter since the results that are logged on the forums lead to mixed result. And what the heck, a computer that SHOULD be able to connect via HDMI and I have to buy an adapter because it's not working correctly?

BTW, my case number is 726102455 if anyone else wants to reference it.

I would seriously return it. Wish I had. Too many hours wasted jumping through Apple hoops to no avail. Their engineers continue to ignore that this problem isn't exclusive to my set up and have me trying all sorts...I feel as a delaying tactic or one in hope I give up. Their reps (that replay messages between customer and engineer) are kind in manner- but the overall problem is not being addressed and I feel like I am being made a fool of now, after all these calls. Poor customer service in that respect- I wish I hadn't given them my custom!

I don't know your monitor's details. I was fortunate in that my monitor also has a DVI connector. I bought a $9 mini displayport to DVI cable. Six days now and it works perfectly. It is NOT an issue with your mini. It's an issue with ALL minis. So if you only have HDMI on your monitor, get a refund. If you have a DVI connection, do what I did.

My monitor has HDMI (2x) and VGA (Asus MX239h or something like that). I guess I could use a Mini-Displayport to HDMI adaptor to see if that works, but again, it's just the whole idea that I have to do buy something else because it's not working the way it should. Also, MM Mini-Displayport to Monitor HDMI seems to work only some of the time with users on the forums, so it's still a gamble.

I feel like I'm buying a Brand-New car that was sitting in an outside lot - in the sun and rain, with mileage other than '0'. If this is the reality of the Mac Minis right out-of-the-box, I feel like I should be able to negotiate the price.

Leaning more to just returning it and continuously checking to see if a solution has been made later on. ****** thing was a birthday gift and now it's just turning into a hassle and headache!

It's so strange that i face this issue with VGA when all people inside this thread are complaining just about the HDMI port.

I'm using an original Mini DP > VGA adapter.

Well, I think we're all in agreement, ALL video output connections should work - adapter or not, but ESPECIALLY if no adapter is in the equation.

Can you imagine... it's like having a Blu-Ray player with a non-functioning HDMI port, and then being told that you needed to use a Composit (RCA) to HDMI adapter in order to connect it to an HDTV.

My setup:

LG 32" Display with HDMI ports

HDMI1 has a mac mini 2014 which after more than 10 mins of sleep will NOT wake up monitor. Have to cycle through display input then it works

HDMI2 has a macbook pro 2013 connected for work - never had problem waking monitor

I previously had a mac mini 2010 connected as above and never had this issue

My case number is:

727454872

On phone with Apple Support now - fingers crossed!

I too am having trouble with my VGA to Mini Display Port. It is connected to a projector that does not wake up after the Mac goes to sleep. My MacBook Air wakes the projector up fine from sleep. I have talked to many Apple Care Senior Advisors and non of them have been able to help. My monitor wakes up fine. It is connect through an HDMI to DVI cable. So I am not sure what the problem is from.

Did some troubleshooting an Apple Advisor and no luck yet. He was nice enough to escalate after doing a programmatic dump of my system. I expect to hear back mid week next week. I will post any updates here.

Returned Mac Mini today. Ludicrously busy store so didn't get to really chit chat about the problem. I'll just check the forums until people confirm problem is solved. Just to be clear... can others please help just confirm the rest of the following?

MM HDMI > Monitor HDMI = Sleep/Wake Issue

MM Mini DP > Monitor Mini DP = OK

MM Mini DP > Monitor VGA = ?

MM Mini DP > Monitor DVI = ?

MM Mini DP > Monitor HDMI = ?

My experience so far:

MM HDMI > Monitor HDMI = Sleep/Wake Issue

MM Mini DP > Monitor Mini DP = Not sure. My display does not have a DP port

MM Mini DP > Monitor VGA =Sleep/Wake Issue

MM Mini DP > Monitor DVI = ?

MM Mini DP > Monitor HDMI = Sleep/Wake Issue

HDMI to HDMI TV... no longer any problems