[Bug 107365] New: [drm-tip] drm_atomic_helper_wait_for_dependencies fails with flip_done timed out

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107365

            Bug ID: 107365
           Summary: [drm-tip] drm_atomic_helper_wait_for_dependencies
                    fails with flip_done timed out
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: dmummenschanz at web.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 140808
  --> https://bugs.freedesktop.org/attachment.cgi?id=140808&action=edit
dmesg after startx

Hi,

on my KBL Notebook with two connected connected monitors the latest drm-tip git
fails to start Xorg and freezes with 

[   25.312146] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CRTC:69:pipe C] flip_done timed out
[   35.552145] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CONNECTOR:102:DP-4] flip_done timed out
[   45.792134] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [PLANE:56:plane 1C] flip_done timed out
[   56.032156] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]]
*ERROR* [CRTC:69:pipe C] flip_done timed out
[   66.272238] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CRTC:69:pipe C] flip_done timed out
[   76.512129] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CONNECTOR:102:DP-4] flip_done timed out


Full dmesg drm.debug=0xe attached.

Regards
Dieter

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