Mac Mini HMDI Chronic HDTV Refresh Problem?

Ok, so let us know if you have another news from Yamaha.

Thanks,

beatloop

Hi Guys,

any news from yamaha yet? Or any fix for this? I am having the same issues scratched my head for about 10 hours today trying to figure it out!

Thanks!

-S

Hi,

No update as yet but sadly AV 1-3 and V-Aux have just failed on my receiver so who knows what'll happen now. Nothing to do with the MM, just the Yamaha being evil 😟 I know it takes the thread on a bit of a tangent but has anyone else had a group of HDMI inputs fail on their Yamahas? Presumably sharing a failed component?

Thanks,

Keith

Keith,

How do you know that AV1-3 have failed, and the V-Aux?

Try it with a Blu Ray or a dvd player. I trued using Active HDMI cables, so to no avail, it was still blinking, which leads me to believe it is a handshaking issue with the HDCP between the mac update and the yamaha.

I have a samsung TV and i was reading on some forums that by snipping a jumper on the tv board, that might solve the problem. I did that last night, and it didn't solve it, so it is quite possible it is a HDCP issue....

Hi,

Well, they were all working a couple of days ago and no longer do. I've tried all inputs on the amp with an XBox One and a Humax PVR. Only AV4-7 work, the others now only stutter between a black screen and the piano logo. The XBox and the PVR were originally in AV3 and AV2 but stopped working yesterday.

Oh well, hopefully it'll get resolved soon.

My Yamaha Blu Ray player is connected to AV1 and trying that this evening showed the same problem. Only swapping to AV4-7 show an image and play sound. It looks like the amp is 'trying' to do something on the failed inputs but never quite makes it and falls back to showing the piano logo.

Keith

Hi,

Just a quick update. Thankfully, factory resetting the amp has restored the HDMI inputs that were misbehaving. I've never had to do that with a significant piece of AV equipment before. Computers eh?! 😕

To keep this relevant to the thread, a factory reset of the amp, still using firmware 1.77, doesn't fix the issues with the OS X screen blinking. Using Windows 10 bootcamped remains stable with no display problems.

Keith

Hi all,

🙂 I've just downloaded and applied the internet firmware update 1.91, plugged my MacMini into AV7 and can report that .... (drumroll) .... it no longer blinks 🙂 I'm on OS X 10.11.6 (El Capitan).

Yay,

Keith

Congrats Keith, persistence pays..

Posting her in case anyone has seen any solution for this on the Mac side...

I have the exactly the same problem with my mid-2011 mac mini (Radon 6630M, macOS Sierra) using a new Marantz model - SR5011.

No problems directly attached. Stable image on boot disk section screen, but 7 second flicker once booted.

I'm chasing Marantz for a solution...

W.

We have had a HDMI problem with some Mac minis and eventually tracked it down to just the Macmini5,1 models we had. Older or newer ones did not cause the same problem.

In our case we were using a HDMI cable to a KVM to a screen and then got very bad flickering/mostly black screen problems. We tried different HDMI cables, screens, etc. and also tried two Mini Displayport to HDMI adapters but had similar problems. The eventual successful fix was to use the following much more expensive active Mini Displayport to HDMI adapter.

http://www.club-3d.com/index.php/products/reader.en/product/mini-displayport-12- to-hdmi-20-uhd-active-adapter.html

Being an active adapter it regenerates the clock signal which maybe the reason for it working.

There is another thread here Re: Mac Mini i5 2011 HDMI handshake/flicker issue... which implies it maybe just mid 2011 i.e. Macmini5,1 models. However the original poster has not specifically identified his model number and the description does not match the date he gave of the Mac mini.