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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [WHL] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe B FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111726">111726</a>
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<th>Summary</th>
<td>[WHL] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe B FIFO underrun
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<th>Product</th>
<td>DRI
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<th>Version</th>
<td>XOrg git
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>other
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>major
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<th>Priority</th>
<td>not set
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>sushma.venkatesh.reddy@intel.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<p>
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<pre>Created <span class=""><a href="attachment.cgi?id=145408" name="attach_145408" title="dmesg for FIFO underruns in PIPE B">attachment 145408</a> <a href="attachment.cgi?id=145408&action=edit" title="dmesg for FIFO underruns in PIPE B">[details]</a></span>
dmesg for FIFO underruns in PIPE B
The issue is reproducible on Chrome OS WHL device when we connect a 4K external
monitor to DUT. I was able to reproduce quite often using LG model 27UD88-W.
Attaching the log where I could reproduce the issue even on drm-tip.</pre>
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