Macbook 2016 HDMI output flickering

in addition to it "flickering" going to black and then back again, my 2016 12" Retina Macbook will display gray snow on my Dell 4k monitor through the Apple USB-C digital AV adaptor.

Once when I switched to a different monitor, and then switched back, it worked for an entire day. But now it's back to flickering. I note that the laptop hangs a lot more with a hard reboot required than any mac laptop I've owned.

Going to upgrade to Sierra and try the beta version to see if that fixes it.

General update: I found Beta 3 to entirely fix my issue (multiple different monitors, HooToo, Apple and VTIN dongles) and Beta 4 seems to be more of the same. All looking good!

On the negative I've still had no contact from Apple on this topic. I reached back out after hearing nothing from my Tier 2 chap after 2 weeks. Other than getting a profuse apology from a different Tier 2 guy I've had nothing else. From my perspective it feels like they've been told to employ total radio silence on this issue now.

Frustrating.

Been a while since I posted here, pretty much gave up using my MacBook since the issue began as using an external monitor is vital to me. Been using Windows 10 since and enjoying it a lot frankly. Looks like b4 solves the issue on the OSX side but I've just install bootcamp on the MacBook and I'm seeing the same issue there too; Apple (if you're reading) are you planning on fixing it there too?

Thanks,

Adam

I have been having the same problem since day one with my MacBook (Retina, 12-inch, Early 2015). I have tried numerous monitors and numerous dongles. I have also tried both yosemite and sierra. It's definitely the macbooks usb-c port.

Sign up for the public beta, latest resolves the issue in macOS at least it seems.

USB-C support has felt distinctively half-baked, very un-Apple, new MBP owners are having issues too it seems.

6th beta has no flickering issues, but weirdness is now much more common with external projectors. Sometimes it goes ok after some seconds, sometimes a reboot is required.

I'm on 10.12.2. The display seems to be more stable, but I haven't used it long enough to see if the issue has resolved. My problem has been with intermittent complete screen black-outs.

I do still have crash on wake that has not resolved with the recent macOS update.

I'm so frustrated with this computer. It's like going back to a prior generation of computers in which I have to save all my work and close out of every application before sleeping. If the display is attached to the computer I have a wake success of less than 10% and then have to long press the power button multiple times in order to get the computer to restart. I just bought AppleCare because I'm highly concerned that one of these days it's not going to power on. I've reinstalled the OS twice but still have these crashes when attached to the monitor. I never have the crashes when the machine is disconnected from the USB-c.

anybody who moved from beta to alpha can confirm it's solved in alpha?

Thanks

I have this issue too since switching to MBP2016. I ran 10.12.2 beta6 and now 10.12.2 final. Still the same issue.

I'm using the Apple AV HDMI adapter and a Dell 34" Curved. Display is off every X minutes for 1-5 seconds...

It doesn't matter if the MacBook just booted or woke up from sleep.

after dealing with this problem I finally found the solution: I sold the macbook and did not buy one of the newly released usb-c only laptops. After many years using apple products I bought the dell 13".

It took me 2 weeks to get used of the windows crap. but everything works as expected unlike the macbooks.

I hope many people follow my route and apple will once again learn how to appreciate their valued customer who finance their product development, and will make the company survive or not.

With beta6 you had the issue? For me beta solved it. I'm waiting for confirmation of the issue solved in final version

Yep, still had the issue with my Dell 34" (U3415W). Now I switched display with a colleague (Dell P2715Q), this works better. So it's an issue with USB-C + AV Adapter + Dell U3415W

XPS 13? How do you find it generally? Is it the new one with USB-C? I already have a USB-C dock so would be nice to use that if possible. I'm about to jump ship also I think .. iPad/iPhone will exist for day to day stuff but for anything serious I don't think a Mac is a suitable tool any longer.

yesterday morning I advised users to upgrade to the latest public version and they reported is stable now no more flickering

Apple Macbook Air, Apple USB-C Dongle and Philips/Dell 4k Monitors so far it looks promising.