[Bug 105323] New: [KBL] One Channel to switch HDMI & DP, but only DP work, hdmi not work >= Kernel 4.13

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105323

            Bug ID: 105323
           Summary: [KBL] One Channel to switch HDMI & DP, but only DP
                    work, hdmi not work >= Kernel 4.13
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: dhajmd at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 137747
  --> https://bugs.freedesktop.org/attachment.cgi?id=137747&action=edit
Kernel_4.10-HDMI work

My platform have 2 DDI channel and 3 display(HDMI.DP1.DP2), 
DDI1 channel to switch connect HDMI&DP1 and DDI2 connect DP2. 
I installed Ubuntu 17.10(Kernel 4.13) and Ubuntu 18.04(Kernel 4.15) on Kabylake
platform. But my HDMI port not work in ubuntu 17.10 & 18.04 
and I change ubuntu 16.04.3 Kernel(4.10) after hdmi can be work. 

Please help me this bug! Thanks.

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