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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108860#c23">Comment # 23</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108860">bug 108860</a>
from <span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span></b>
<pre>(In reply to Nick Desaulniers from <a href="show_bug.cgi?id=108860#c21">comment #21</a>)
<span class="quote">> I just booted a fresh build of drm-tip as suggested in
> <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [KBL] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A FIFO underrun"
href="show_bug.cgi?id=99344#c13">https://bugs.freedesktop.org/show_bug.cgi?id=99344#c13</a>.
>
>
> $ dmesg | grep fifo
> [ 5.549241] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
> pipe A FIFO underrun
>
> $ cat /proc/version
> Linux version 5.2.0-rc4+ (nick@nick-Blade-Stealth) (clang version 9.0.0
> (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
> 80fee25776c2fb61e74c1ecb1a523375c2500b69)) #32 SMP Sat Jun 15 17:34:43 PDT
> 2019
>
> $ cd linux
> $ git show -1
> commit 39e3d39be374d48ba73b61ec34f19a0afd5ac6f4 (HEAD -> drm-tip,
> drm-tip/drm-tip)
> Author: Matt Roper <<a href="mailto:matthew.d.roper@intel.com">matthew.d.roper@intel.com</a>>
> Date: Sat Jun 15 08:21:37 2019 -0700
>
> drm-tip: 2019y-06m-15d-15h-20m-54s UTC integration manifest
> ...</span >
The impact of this issue is screen flickering? or blank screen? or both? How
often it happens? Asking this to know the severity of this issue.</pre>
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