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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT][KBL] igt@kms_flip@basic-flip-* kill the machine when connected to a DP MST screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102392">102392</a>
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<th>Summary</th>
<td>[BAT][KBL] igt@kms_flip@basic-flip-* kill the machine when connected to a DP MST screen
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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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>martin.peres@free.fr
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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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<pre>The tests igt@kms_flip@basic-flip-*, when executed on fi-kbl-7560u, generated
the following dmesg errors before completely hanging the machine:
[ 518.181177] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[ 526.414476] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[ 534.652395] [drm:intel_mst_enable_dp [i915]] *ERROR* Timed out waiting for
ACT sent
[ 534.697904] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[ 543.029578] [drm:intel_dp_set_idle_link_train [i915]] *ERROR* Timed out
waiting for DP idle patterns
[ 543.073515] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
[ 551.408384] [drm:intel_mst_enable_dp [i915]] *ERROR* Timed out waiting for
ACT sent
[ 551.419261] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun
Full logs: <a href="https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5484/">https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5484/</a></pre>
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