[Bug 102830] New: [QM67] Screen Flickering Until Error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102830

            Bug ID: 102830
           Summary: [QM67] Screen Flickering Until Error
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: yanfali at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 134302
  --> https://bugs.freedesktop.org/attachment.cgi?id=134302&action=edit
Xorg log file

Symptoms, screen flashes non-stop logging in X server until this error happens,
then problem appears to go away and updates are stable. Is there some sort of
reset that happens after this event?

[  444.294724] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun
[  444.294813] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR*
uncleared pch fifo underrun on pch transcoder A
[  444.294859] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH
transcoder A FIFO underrun

After this happens the display stabilizes. Until then it's a flickering
resizing mess.

Chipset: Intel Corporation QM67 Express Chipset Family LPC Controller rev 04
Xorg: xorg-server 1.19.3-3
Arch: x86_64
Kernel: 4.12.13-1-ARCH
Distro: Arch Linux
Machine: Lenovo T420i
Screen: LVDS-1 connected primary 1600x900+0+0 (normal left inverted right x
axis y axis) 309mm x 174mm

Reproduce: 100% of bootups

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