External monitor flickering Macbook 2016

I have the same issue.

It might be radio frequency interference problem between USB 3.0 and 2.4Ghz Wifi.

So, I'm turned off my wifi and using usb RJ45 ethernet. It doesn't flickering anymore.

My coworker and I recently purchased 2016 MacBooks to use for work, and external monitors and docks to go with them. We both experienced this major, unacknowledged issue- but thought it might be related to the monitors or docks rather than the MacBooks. However once I got home, using a different monitor and the official Apple multiport adapter I have the same result.

Another symptom I experienced was a prompt to install a USB-C update almost every time I plugged in the adapter or dock. It didn't seem like the update ever properly installed.

Usually I reboot, and this makes the problem disappear (also pointed out by user tom-ch). Hopefully somebody inside Apple realizes this is an issue and gets us some steps to rectify it- other than rebooting our machines every day (like cave men! 😉)

I'm also experiencing this issue with the 2016 macbook. I facilitate meetings in four different conference rooms every day each with different tv monitors I use a external displays. Each monitor experiences a different issue (flickering, not working at all, intermittent blank display). I have tried the Apple multi-adapter and a CableCreation USB-C to HDMI adapter but both have issues. This is definitely something hardware or software related for the computer. I'm hoping a USB-C update will eventually resolve this.

Hi Schendstok & Darren (specialist),

Please take a look at our discussion of the same problem which many of us are experiencing:

Macbook 2016 HDMI output flickering

Regards,

Ken

Diagnostics show nothing abnormal- this is a hardware or software issue with the new MacBooks in general. Mine has it, my spouse's has it, my coworker's has it. Others in this thread have this issue as well. I honestly can't say I've ever seen a MacBook without this problem. It is a very serious issue which affects my productivity every single day, and it warrants a real response from Apple.

I have a similar problem with my MacBook Pro with toucher 13 inch late 2016 (just got it) constant flickering every with a samsung 28 inch 4k monitor using - genuine Apple Multiport adaptor and HDMI. I updated the software for the Mulitport Adaptor and tried both left and right USBC ports. Monitor is running at 30Hz

Hoping someone may know what the issue is or provide inside as to a monitor that will not have these issues.

So, I hope this is helpful, my apologies if not. But I had the same problem with identical symptoms using the same adapter only with a Samsung 4K monitor. My resolution? I was using a pre HDMI 2.0 cable. Swapped to a HDMI cable built in 2014 to the new spec. Issue solved.

I know not all the monitors in question in this thread are 4K, but I figured with so many old HDMI cables floating around out there that weren't built to work with more recent displays, it's worth a shot. Often I don't even think of troubleshooting the simplest part of the equation, first.

It doesn't work for my case, Hootoo is the worst in fact.

I contacted their support, they said they would give me $15 refund but never send me the $.

I have the same issue with the Samsung U28E510. It's running in 4K but only 30 Hz and blacks out periodically. I don't have a solution and need one.