[Bug 188321] New: i915: black screen after disconnecting HDMI monitor

[Bug 188321] New: i915: black screen after disconnecting HDMI monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=188321

            Bug ID: 188321
           Summary: i915: black screen after disconnecting HDMI monitor
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.x
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: kernel@stefaus.de
        Regression: No

Created attachment 245481
  --> https://bugzilla.kernel.org/attachment.cgi?id=245481&action=edit
dmesg with drm.debug=14

Since new install of my Linux System and using a 4.4+ Kernel (before 3.19) I'm
getting kernel exceptions every time I disconnect my via HDMI connected
Monitor.

Steps:
- booting to desktop without problems
- disconnect HDMI
- eDP is showing desktop for ~2 seconds
- eDP turns black, no keyboard inputs, the rest keeps running

No difference if HDMI connected while/after boot, I tried different 4.4+ Kernel
Versions from Ubuntu to Mainline, every time nearly the same output.

[   90.275535] [drm:ironlake_crtc_enable [i915]] *ERROR* mode set failed: pipe
A stuck
[   90.329696] ------------[ cut here ]------------
[   90.329789] WARNING: CPU: 3 PID: 1834 at
/home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:14221
intel_atomic_commit_tail+0xf93/0xfc0 [i915]

see attached dmesg for the full exception trace.

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[Bug 188321] i915: black screen after disconnecting HDMI monitor

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=188321

Jani Nikula <jani.nikula@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Jani Nikula <jani.nikula@intel.com> ---
Please file drm/i915 bugs at
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel

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