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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100219#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100219">bug 100219</a>
from <span class="vcard"><a class="email" href="mailto:udo@hypervisor.org" title="udo@hypervisor.org">udo@hypervisor.org</a>
</span></b>
<pre>It happens when booting the Linux kernel, so I guess libdrm is not even
involved. I tried it with Linux 4.11.3 and drm master b6f450e0.
Result is still the same.
[ 1.635652] tsc: Refined TSC clocksource calibration: 2691.258 MHz
[ 1.635668] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x26cafc29fa8, max_idle_ns: 440795270837 ns
[ 1.886585] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A
FIFO underrun
[ 1.887064] [drm:intel_set_pch_fifo_underrun_reporting] *ERROR* uncleared
pch fifo underrun on pch transcoder A
[ 1.887070] [drm:cpt_irq_handler] *ERROR* PCH transcoder A FIFO underrun</pre>
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