[Bug 94439] New: [BXT-P/APL] DP and HDMI will stop output after resumed from S3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94439

            Bug ID: 94439
           Summary: [BXT-P/APL] DP and HDMI will stop output after resumed
                    from S3
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          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

DP and HDMI will stop output after resumed from S3.

Reproduce Steps
==============
1, connected DP and HDMI
2, do S3: $ echo mem > /sys/power/state

Expected Result
=============
Both DP and HDMI will continue to output after resumed from S3

Actual Result
===========
DP and HDMI go black screen.

System Environment
=======
linux OS version: Ubuntu 15.10
CRB: Apollo Lake RVP1a FabA
Platform: Apollo Lake Platform
BIOS:APLKRVPA.X86.-119.R10.1601031622
Tree: git://anongit.freedesktop.org/drm-intel
Branch: drm-intel-nightly
Commit: 60803e27ae17d7e853c7872c5574f9380b902a57

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