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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - two external screens permanently go blank on HP EliteBook Folio G1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108462#c83">Comment # 83</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - two external screens permanently go blank on HP EliteBook Folio G1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108462">bug 108462</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 Johannes Berg from <a href="show_bug.cgi?id=108462#c82">comment #82</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=145261" name="attach_145261" title="requested dmesg from new drm-tip commit 244c5c8116c0042d61455697a9d85e899e2d9267 (with drm.debug=0x1e)">attachment 145261</a> <a href="attachment.cgi?id=145261&action=edit" title="requested dmesg from new drm-tip commit 244c5c8116c0042d61455697a9d85e899e2d9267 (with drm.debug=0x1e)">[details]</a></span>
> requested dmesg from new drm-tip commit
> 244c5c8116c0042d61455697a9d85e899e2d9267 (with drm.debug=0x1e)</span >
Thanks for gathering the logs from drmtip. There are some underruns here
7.734338] [drm:gen8_de_irq_handler [i915]] hotplug event received, stat
0x00200000, dig 0x10101011, pins 0x00000020, long 0x00000000
[ 7.734378] [drm:intel_hpd_irq_handler [i915]] digital hpd port B - short
[ 7.734437] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port B - short
[ 7.736611] [drm:intel_dp_hpd_pulse [i915]] got esi 01 10 00
[ 7.744269] [drm:intel_dp_hpd_pulse [i915]] got esi2 01 00 00
[ 7.744307] [drm:intel_dp_hpd_pulse [i915]] got esi 01 00 00
[ 7.750579] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun
[ 7.750676] [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to
FIFO underrun.
@Ville, help here?</pre>
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