[Bug 101921] New: [GLK] Mipi panel remains blank screen after S3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101921

            Bug ID: 101921
           Summary: [GLK] Mipi panel remains blank screen after S3
           Product: DRI
           Version: DRI git
          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: luis.botello.ortega at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org
     i915 platform: GLK
     i915 features: display/DSI

Created attachment 132980
  --> https://bugs.freedesktop.org/attachment.cgi?id=132980&action=edit
dmesgS3

==Bug detailed description==
--------------------------------------------------
Mipi screen gets blank screen after resuming from S3 state

==Steps to reproduce==
--------------------------------------------------
# echo mem > /sys/power/state
Resume system

==Actual results==
--------------------------------------------------
Mipi screen gets blank screen after resuming from S3 state

==Expected results==
--------------------------------------------------
displays should resume with no corruption nor any kind of failures

==Hardware configuration==
--------------------------------------------------
CPU Name : Genuine Intel(R) CPU @ 1.10GHz (family: 6, model: 122) 4 cores
Graphic: Intel Corporation Device 3184 (rev 01) prog-if 00 VGA controller
RVP SKU : GLK RVP1
SOC : GML A1 Soc
QDF : Ql9R
Reworks : F23
Display: MIPI AUO 10.1" 1920x1200 Non-Touch MIPI Kit - B101UAN01.7

==Software configuration==
--------------------------------------------------
kernel version              : 4.13.0-rc2-mipi-july-25-2-g92845e5-dirty
architecture                : x86_64
os version                  : Ubuntu 17.04
bios revision               : 53.51
ksc                         : 1.36
swap partition              : enabled on (/dev/sda2)

======================================
        Graphic drivers
======================================
modesetting                 : enabled
modesetting compiled for    : 1.19.3 X.Org Video Driver
xorg-xserver                : 1.19.3
intel-gpu-tools             : 1.17-1


==kernel configuration==
--------------------------------------------------
commit 92845e5dff13907ccebff6b9ae742e793ddc6a74
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Jul 25 15:41:37 2017 +0100

    drm-tip: 2017y-07m-25d-14h-41m-13s UTC integration manifest


==Attachments==
--------------------------------------------------
dmesgS3 dmesgS4

==Additional Info==
--------------------------------------------------
MIPI screen works fine after resuming from S4. I am adding dmesgS4 too.

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