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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - SKL screen flicker and dmesg [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103229#c57">Comment # 57</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - SKL screen flicker and dmesg [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103229">bug 103229</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 Vít Ondruch from <a href="show_bug.cgi?id=103229#c56">comment #56</a>)
<span class="quote">> Interestingly, I used to have issues with
> "[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
> underrun", i.e. flickering on my secondary screen. But with recent updates
> of my Fedora Rawhide, I started to observe flickering on my primary screen
> with "[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A
> FIFO underrun"</span >
Can you please elaborate the issue? What is the scenario here? How often it
occurs? What's the platform?
Can you please attach the dmesg from boot with kernel parameters drm.debug=0x1e
log_buf_len=4M?
Have you verified the issue with drmtip? If not I would recommend to verify the
issue with drmtip (<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>).</pre>
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