[Bug 93684] New: [BXT-P APL] Suspend to RAM does not work without i915 loaded

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93684

            Bug ID: 93684
           Summary: [BXT-P APL] Suspend to RAM does not work without i915
                    loaded
           Product: DRI
           Version: unspecified
          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: humberto.i.perez.rodriguez at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 120993
  --> https://bugs.freedesktop.org/attachment.cgi?id=120993&action=edit
dmesg.log

Summary :
-------------------------------------
After send BXT-P to suspend state and try to resume the platform instead to
resume it reboots
notice that with/without i915 loaded i have the same behavior
Attached dmesg.log

DMC : 1.05

Graphic stack versions  :
-----------------------------------------
cairo version: 1.15.2 / commit :  db8a7f1 
drm version :  libdrm-2.4.66  / commit : b38a4b2 
intel-driver : 1.6.2 / commit: 683edee
libva version : libva-1.6.2 / commit : 304bc13
mesa version : mesa-11.0.8 / commit : 261daab 
xf86-video-intel version : 2.99.917  / commit : baec802 
xserver version :xorg-server-1.18.0 / commit :7921764 

kernel drm-intel-testing:
------------------------------------------
commit 91587c722c28c4116dedbfbf08aa874377bc76f8
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Fri Dec 4 17:35:54 2015 +0100

    drm-intel-nightly: 2015y-12m-04d-16h-35m-07s UTC integration manifest

kernel version : 4.4.0-rc3
git url        : git://anongit.freedesktop.org/drm-intel
git branch     : drm-intel-testing
git describe   : drm-intel-next-2015-11-20-rebased-13721-g91587c7


Steps:
------
1. Execute command :
      echo mem > /sys/power/state
2. Wait 30 seconds
3. Resume with keyboard

Actual result:
--------------
Suspend to Ram and resume do not work instead the system reboots

Expected result:
-----------------
Suspend to RAM and resume should work without any issues

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