[Bug 105267] New: Screen goes blurry after getting hpd irq

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105267

            Bug ID: 105267
           Summary: Screen goes blurry after getting hpd irq
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: ethan.hsieh at canonical.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 137634
  --> https://bugs.freedesktop.org/attachment.cgi?id=137634&action=edit
kern.log (drm.debug=0x14)

The issue occurs on a laptop (eDP), NOT external monitor.

kern.log: (Please check full log as attached)
Feb 27 14:01:33 u-Precision-M5530 kernel:
[71.922052] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port A - short
[71.924280] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port A - short
[71.945713] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port A - short

Kernel: drm-intel-nightly (4.16.0-994).
http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2018-02-27/

$ lspci -nn
Graphic: VGA compatible controller [0300]: Intel Corporation Device [8086:3e9b]
(prog-if 00 [VGA controller])
3D controller [0302]: NVIDIA Corporation Device [10de:1cbb] (rev a1)

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