Bug 93719

Summary: [drm:intel_display_resume [i915]] *ERROR* Restoring old state failed with -22
Product: DRI Reporter: Jerome <an.inbox>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: DRI git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg log covering boot/suspend/resume with drm.debug=0x04 none

Description Jerome 2016-01-14 20:57:19 UTC 
Created attachment 121048 [details]
dmesg log covering boot/suspend/resume with drm.debug=0x04

Resume from suspend fails, systematic over 5 tests. The screen stays black, VT switching doesn't work. The machine is still functional and can be accessed with SSH, dmesg log covering a boot/suspend/resume cycle with drm.debug=0x04 is attached.

Intel DRM nightly kernel 4.4.0:
  commit fdbeff6c26904cedc81e0b3383d3174802230a60
  2016y-01m-12d-18h-13m-13s UTC integration manifest

PC is a Thinkpad X1 3rd gen, i5-5200U, 2560x1440 internal screen. No peripheral attached, this happens only with the internal display.

This is somewhat related to bug #91585: once this bug is fixed, I'll be able to check whether Intel kernel 4.4.0 fixes #91585 or not.

Thanks
Comment 1 Jerome 2016-02-01 19:00:57 UTC 
The issue doesn't happen anymore with the following nightly kernel 4.5.0-rc1:
  commit 29cc50da24351521b481482cb64043304cafbba9
  2016y-01m-29d-20h-37m-33s UTC integration manifest

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