Surface Book 2: External Monitor Flickering

The only thing that worked for me is using a really short usbc - hdmi cable or using an official surface dock.

All other work arounds failed.

THANK YOU! Been trying to figure this out for hours and stumbled on your post... The same exact issue here and when I changed the cord to my 3 foot one, and now my tv isn't flickering when I use it as another monitor. 

Update... May have spoken too soon... Slight flickering now... this is **** :[

I have been struggling with this exact same problem ever since I took my Surface Book 2 out of the box, approximately six months ago. Today, the problem has been solved.

I had tried two different HDMI cables (one with an HDMI to USB C adapter, and another that didn't need the adapter), and had the same problem. I tried hooking my laptop up to two different monitors and two different HDMI TVs and had the same problem. I spent HOURS on the phone with Microsoft support, all for naught. Then, I took a four-hour round trip to the Microsoft store in San Diego; there, we were unable to replicate the problem. I was frustrated beyond belief.

Once back home, I started wondering what was different at the Microsoft store as opposed to home (other than being a different monitor, and I knew that wasn't it), so it had to be the cable since I had not taken either of my cables with me. I went to Staples.com and ordered this cable: https://www.staples.com/StarTech-com-USB-C-to-HDMI-Male-Male-Adapter-Cable-1-m-Black-CDP2HDMM1MB/product_IM17M4376. It worked! No more flickering! 

It seems that the two cables I was using before were both 6' long, and the new cable is 3' long. Apparently, past 3', the signal gets lost on the way to the monitor. Of course, the Surface Book 2 *should* be able to drive a 6' cable, but I'm not going to complain, now that everything seems to be working as it should. The 3' cable is barely long enough to go between the monitor and my laptop, so this may not be an option for everyone, but if you can bring the monitor and laptop closer together, this may be the fix you've been looking for. Good luck!!

Have you tried a shorter cable? Using a 3' cable instead of a 6' cable solved the problem for me.

Joseph,

In the meantime, I downloaded the latest firmware update you linked to, one file at a time.  It did not solve the problem.

What is the graphics driver you refer to in your last question?  Where do I find it?

Thank you.

Joseph,

Please see the answers to your questions, in the same order:

• Monitor: Dell 19”, model P1917S.
• Yes, I have. The problem persists with various adapters.
• The flickering / disconnection does not respond to any app or program; it happens irrespectively of any other issue.
• I have not tried any trouble-shooting steps.
• I cannot confirm if I have the latest firmware. How can I know if I do?