[Bug 90911] New: [PNV] S3 /S4 resume cause call trace, and screen failed to light up after resume while X is running.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90911

            Bug ID: 90911
           Summary: [PNV] S3 /S4 resume cause call trace, and screen
                    failed to light up after resume while X is running.
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: hengx.ding at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 116385
  --> https://bugs.freedesktop.org/attachment.cgi?id=116385&action=edit
dmesg

System Environment:
--------------------------
Regression: not sure.
Platform: PNV

kernel: drm-intel-testing-05-22


Bug detailed description:
-----------------------------

S3 and S4 will cause call trace in dmesg. Screen will fail to light up after
S3/S4 resume while X is running.


Reproduce steps:
---------------------------

1. xinit &
2. echo mem > /sys/power/state
3. resume and check if the screen shows normally.
4. kill X and check dmesg.

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