Hey guys,
I've read a lot on the forums regarding the screen flickering issues and trouble getting external monitors to work with the Surface Dock. However, my problem is not with the dock, but with a direct connection using mini-DP to DP cable from Surface Book to
an LG 31" 4K monitor. I have a Surface Book i5 256GB dGPU.
Here is what I'm seeing:
https://www.youtube.com/watch?v=D8a8EWgmwn4&feature=youtu.be
As you can see, the 4K display flickers on and off. If I disable Displayport 1.2 on the Monitor OSD, it works fine, but I'm stuck at 30Hz and 3840 x 2160.
With DisplayPort 1.2 enabled on the monitor, I should be able to get 60Hz at 4096 x 2160 resolution, but it flickers as seen in the video.
Things I've tried:
- 2 different miniDP to DP cables.
- The same miniDP Cable from my desktop to this same monitor works fine
- Even if I set the monitor screen resolution to 1920 x 1080 (or any resolution for that matter), the screen still flickers just the same, as long as Displayport 1.2 is enabled on the Monitor OSD
- I have the latest updated firmware and display drivers (as of 1/10/2016) from Microsoft.
It feels to me that I may have a defective DisplayPort on this machine, since I haven't seen any reports to my knowledge of people having issues with a single monitor flickering, while using a proper Display Port cable, and not going through the dock. Let
me know what you guys think, any help is appreciated.
Thanks!
Wen