[Bug 94884] New: [i915]] *ERROR* CPU pipe A FIFO underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94884

            Bug ID: 94884
           Summary: [i915]] *ERROR* CPU pipe A FIFO underrun
           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: schlaganfall.patient at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 122851
  --> https://bugs.freedesktop.org/attachment.cgi?id=122851&action=edit
dmesg output with kernel parameters drm.debug=0x1e log_buf_len=4M

got a new HP Envy notebook and see screen continous flashing after some
seconds. Happens sometimes after 2sec, sometimes after 30s. Annoying

found dmesg entry
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun

System is opensuse tumbleweed

uname -rm
4.5.0-3-default x86_64

attached dmesg output with drm.debug=0x1e

looks similar to Bug #94605

cat /sys/class/drm/card0/error
no error state collected

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