[Bug 69166] New: [Baytrail-M] Monitor can't light up after resuming from S3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69166

          Priority: medium
            Bug ID: 69166
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [Baytrail-M] Monitor can't light up after resuming
                    from S3
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: yangweix.shui at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 85534
  --> https://bugs.freedesktop.org/attachment.cgi?id=85534&action=edit
dmesg: monitor fail to display after resuming from S3

Environment:
----------------------------
Kernel: (drm-intel-next-queued)da66146425c3136943452988afd3d64cd551da58
Author: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Date:   Fri Sep 6 16:03:28 2013 +0300
    drm/i915: include hangcheck action and score in error_state

lspci:
----------------------------
00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0a)

Description && Steps:
----------------------------
1. Boot up machine, and the monitor displayed well.
2. Then do S3(echo mem >/sys/power/state), push the power button to resume.
3. After machine resumed successfully and can be connected, but the monitor is
black screen.
4. removed i915, this issue also exists.
5. Other platforms don't have this problem.

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