Mac mini 2014 won't wake monitor via HDMI

Same issue - I have 2 Samsung S32D850T and did several tests over a month for the Apple senior advisor which were all reviewed by the engineering department. In the end I was told there's no resolution and to keep an eye out for OSX software updates to possibly resolve the issue. VERY disappointed by the outcome as I can't even return the Mac. I'm using the mini display port (thunderbolt port) to display port (regular size)Case: 714736418

Apple released a fix for Yosemite yesterday. 10.10.2 fixes a host of issues, including (allegedly) the Wifi problems.

Zero impact on the display wake up issues. As a matter of fact, I can't be totally sure, but I now believe that only the KB will wake up the primary display, the mouse does not seem to do that. And nothing wakes up a secondary display except turning it off and then back on.

Yes, all of my testing so far is showing:

Monitors asleep for a short period of time

Moving mouse does not wake up monitors

Clicking mouse wakes up the primary monitor (on HDMI, does not wake up the displayport monitor)

Monitors asleep for a longer period of time

Moving mouse does not wake up monitors

Clicking mouse does not wake up monitors

That means that in 10.10.2 they did something to the sleep/monitor interaction and that, unfortunately, they made it worse.

That is exactly the issue - well summed.

Note to Apple: Congrats on the $18B in revenue this qtr - can we spend some of that cash haul on fixing this? pretty please. I have called a number of times, sent you my system data but alas we are still all in pain.

Mac Mini November 2014. Yosemite upgraded to 10.10.2.

Viewsonic VP2770-LED connected to HDMI. Viewsonic input set to HDMI.

Wireless Keyboard and trackpad. Both Apple.

The Yosemite 10.10.2 upgrade solved it for my system

Mac wakes up from deep or short sleep - LED solid - after keyboard press or trackpad click

Viewsonic stays in power saving mode (LED turns from amber to blue)

Whoa whoa whoa... So it now works for you? HDMI connected monitor wakes up from sleep like a normal computer? Is this regardless of how long the computer/monitor has been asleep? And we're talking HDMI to HDMI, right?

hmm could be time to re-buy a mini?

Just to clarify

Mac Mini November 2014. Yosemite upgraded to 10.10.2.

Viewsonic VP2770-LED connected HDMI(mac) to HDMI(Monitor). Connected with an Amazon Basics HDMI cable

Viewsonic input set to HDMI.

Wireless Keyboard and trackpad. Both Apple.

The Yosemite 10.10.2 upgrade solved it for my single monitor system.

Mac wakes up from deep (LED off) or short(LED pulsing) sleeps to LED solid - after keyboard press or trackpad click

Viewsonic comes out of power saving mode (LED turns from amber to blue)

So it now behaves in the same way as my 2012 Mini - also on 10.2.2. Although this one had always behaved as expected.

I can also confirm that after updating to 10.10.2, my Mac Mini 2014 wakes the monitor using either the track pad or keyboard after several hours of sleep

Setup:

1. LG 32" LED Display (32LB5600)
2. Mac mini 2014 - HDMI to HDMI#1
3. Mac book Pro 2013 - HDMI to HDMI #2

The MBP never had an issue of waking the monitor on 10.10.1. The Mac Mini is now working as expected using an HDMI to HDMI directional cable, in the same way my Mac Mini 2010 did.

Thanks Apple.

Asus al1751 with brand new mini. Connected via hdmi cable and dvi-d adaptor. The same problem with no wake up.

Today changed to hdmi - dvi-d cable (no adaptor) works like a charm!

Can anyone verify that mini displayport is waking their monitor up in any combination?

I have no issue with the HDMI to DVI, that has always worked and continues to work. If I can find a combination that allows both monitors to wake up I would be eternally happy. You know, the way that EVERY OTHER STINKING COMPUTER WORKS SINCE 2001.

Getting frustrated with the "it just works" crowd at Apple....

Ok. Well, I think I will go to the store and finally re-buy a Mini. Will report back here with results later!

Just turned on my re-bought Mini and updated right away to 10.10.2...

So far, SUCCESS! And after only a month! 😠

Oh well... anyway, Mini HDMI to Monitor HDMI

Mouse click - Monitor wakes up

Keyboard key - Monitor wakes up

Mind you, this is only after a short period of sleep... hopefully all goes well tomorrow, and after that, and after that, and after that!

I installed 10.10.2 this week and the patch finally solved this problem on my Acer S276HL monitor.

Now when the system is sleeping, I press a key, the Mini wakes up and 1-2 seconds afterwards the monitor comes out of sleep mode all on its own - like it should do.

Yes, it seems that the problem disappeared after installing the latest Yosemite 10.10.2 upgrade. Great!

It works!! Finally. Thanks for that Apple :-) and for the many hours of phone calls...