[Bug 98141] [SKL] Can not choose correct refresh rate when using docking station

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98141

--- Comment #10 from rich.chen at intel.com ---
Created attachment 127913
  --> https://bugs.freedesktop.org/attachment.cgi?id=127913&action=edit
testpatch to pass the dock based on intel_dp_mode_valid function

The test patch is workable based on the feedback of Canonical.com as the below:
    We applied the said patch to 4.9.x kernel and tried it with the Dell IE
dock.
    With it, the Dell 4K monitor was correctly.

But, the test patch is based on DP function(intel_dp_mode_valid),so we need to
wait for official DP-MST function(intel_dp_mst_mode_valid) to be delivered.

Thanks.

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