P2815Q, U2412M, Surface Pro 3 + Dock. Flickering U2412M

Hello - my setup below =

-Surface Pro 3 (i7, intel hd 5000 video) - connected to surface P2815Q pro 3 dock mini DisplayPort / on monitor (display size full port)

-Monitor P2815Q 4 k (surface pro 3 dock - using display port output daisy chain U2412M)

-Monitor U2412m (connected via the displayport P2815Q display port out)

My first question was that I could not display port on the P2815Q of work - until I chose the menu on the monitor and the displayport 1.2 setting turned on.  Now the output on the P2815Q dp port feeds the U2412M.

Now, my problem is that when I remove the surface and re-dock - the U2412M sparkles. I can solve the problem of flicker by unplugging the power cord of the U2412M (last of the closed string) and plug back. It's almost as if there is some type of sync problem.

Any thoughts or ideas?
Any help is appreciated!

Thank you

I have three Surface Pro 3 docks that have had this problem. After replacing the display-port cables provided with the Dell monitors with some Star Tech cables to the problem disappeared.

www.StarTech.com/.../6-ft-Mini-DisplayPort-to-DisplayPort-adapter-Cable-male-to-male ~ MDP2DPMM6

Tags: Dell Peripherals

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