You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Mac mini 2014 won't wake monitor via HDMI

Hello! I just purchased a brand new Mac mini (Late 2014), 2.6 GHz Intel Core i5 with Intel Iris 1536 MB, running Yosemite 10.10. It's connected to an Acer K242HL monitor via HDMI.

The monitor connection works correctly (I'm typing this on it now), until I attempt to wake the monitor from sleep. The Mac itself clearly wakes when I click the mouse (the white light stops blinking and stays solid), but the monitor does not respond. I have to power off/on the monitor to get it to wake up.

I have previously used the monitor with a MacBook Pro (via HDMI) in clamshell mode and had no problems with it waking up straight away, so I'm assuming the problem lies with the Mac mini.

Can anyone offer any advice about this? It's very annoying not being able to quickly wake up the display when I need to use the Mac.

Thanks!

Mac mini, OS X Yosemite (10.10)

Posted on Oct 25, 2014 3:35 AM

300 replies

Dec 20, 2014 10:14 AM in response to Elvecio

Again to add my experiences if it helps at all. I've got a new mini connected to a sony bravia tv. It's recognizing the tv all the time now. Sometimes I have to go to another hdmi display location and then come back to the one the mini is connected to but when I do it always connects.

iashton

Level 1

13 points

Dec 21, 2014 1:26 AM in response to iashton

Just tried this - is it the same problem?

Mac Mini November 2014. Yosemite 10.10.1.

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

Wireless Keyboard and trackpad. Both Apple.

System Preferences/Decktop and Screen Saver/Screen Saver/Hot Corners

Set a corner to - Put Display to Sleep

So when I move the cursor to the defined corner

1. Mac stays on - LED solid

2. Viewsonic flashes No Signal and goes into power saving mode (LED amber)

Which is what I'd expect but now a keypress or mouse move won't wake up the monitor

So I have to

Power cycle Viewsonic - tap on/off button twice

Viewsonic wakes up(LED blue). All windows reappear.

What should happen

1. Mouse to Hot Corner - Display turns off.

2. Tap a key/click mouse - Display turns on.

Dec 21, 2014 2:00 AM in response to iashton

Yes it seems to be the same problem as we are all facing. I put forward a complaint to Apple via email but the advisor I wrote to had an automatic response stating she is away over Christmas. I stated (in a nutshell) all the complaints on here and mentioned the range of monitors it is effecting and thus the impossibility it must be a 'monitor' issue.

If there is no joy from her, then I guess it's time to complain. Ironically one must put pen to paper in order to complain to one of the largest tech companies. Great ey. So I will print off this forum and a letter and send it to Ireland. When it reaches Ireland they will take no responsibility and by then my Apple care will probably have expired 😉

Such a little problem really but very frustrating. Shall update as and when I hear back.

Orionman

Level 1

0 points

Dec 22, 2014 1:33 PM in response to Sarahlrobo

Hi Guys.

Same issue with Mac Mini but have solved it. Was reading my Samsung TV manual and noticed it recommended computers are connected to the port labelled HDMI/DVI (HDMI 2 but mini was in HDMI 3). Once I changed to this port problem solved. Obviously this will not help all but may help some .

Dec 23, 2014 2:48 PM in response to Orionman

Thanks Orionman, It seems to be the same issue with the Philips 234E. Swapped the HDMI input and it has woken up for the last 2 try's. Fingers crossed.

Dec 24, 2014 5:50 AM in response to mac1harvey

Great news that it has worked for you both! I have tried this also but without results. Did you simply plug it into the other port and adjust the input on the monitor...perhaps there is another adjustment I need to make?

Orionman

Level 1

0 points

Dec 24, 2014 9:13 AM in response to Sarahlrobo

I would suggest it does not work on just any HDMI port on your TV it has to be one set up for DVI connection I have two other HDMI ports and neither of them recognise the Mac Mini waking, only the one marked HDMI/DVI. This seems to point to the fact that the issue is related to how the port is set up on the TV rather than the Mac Mini. A pain for all those whose TVs do not have a compatible HDMI port.

If this is the case I think Apple should be highlighting the requirement rather than seemingly ignoring it.

Maybe someone with more technical knowledge than I could comment?

Dec 25, 2014 1:40 AM in response to Orionman

Yes, you are quite correct, It is the HDMI/DVI port, and although much better, it still does not wake easily all the time. It can take multiple button presses sometimes and some occasions I'm still having to turn the monitor off.

maelob

Level 1

0 points

Dec 25, 2014 3:57 PM in response to mac1harvey

Same issue here with a view sonic monitor. Ive been searching online for a solution but so far no luck. I works by power off an on. But this type of thing should be automatic.

Dec 25, 2014 4:09 PM in response to maelob

Everyone who has a 2014 Mac Mini and has this problem with their HDMI connection should open a case with Apple Support as they are all still within their free support period. That way we might get a resolution to the problem.

Merry Christmas!

manny_b

Level 1

0 points

Dec 25, 2014 8:35 PM in response to El Morche

That was my Christmas surprise that came with my new Mac Mini. Had i known, I would have not restricted my criteria for monitors to having HDMI and purchased a display port to DVI adaptor. Needless to say, I am a bit miffed.