[Bug 92916] New: [APL] [Audio] [HD-A Display] Can't light on HDMI and DP monitor if boot up without monitor connected

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92916

            Bug ID: 92916
           Summary: [APL] [Audio] [HD-A Display] Can't light on HDMI and
                    DP monitor if boot up without monitor connected
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: han.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

System Environment
BIOS:APLKRVPA.X64.0103.R13.1509280749
Kernel:4.3.0-bxt+
Tree: git://anongit.freedesktop.org/drm-intel
Branch:drm-intel-nightly
Commit: 6a5ee47c4451207d40bf2e816fdec37b947cee53

Bug detailed description
If boot up APL with HDMI and DP cable not connected to monitor, the monitor
does not display after connect the DP/HDMI cable.
If boot up APL with HDMI and DP cable connected to monitor, display is OK.

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