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<body><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> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@kms_chamelium@hdmi-hpd-storm - dmesg-warn - Received HPD interrupt on pin 9 although disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111219">bug 111219</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Priority</td>
<td>medium
</td>
<td>high
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@kms_chamelium@hdmi-hpd-storm - dmesg-warn - Received HPD interrupt on pin 9 although disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111219#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@kms_chamelium@hdmi-hpd-storm - dmesg-warn - Received HPD interrupt on pin 9 although disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111219">bug 111219</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 emersion from <a href="show_bug.cgi?id=111219#c3">comment #3</a>)
<span class="quote">> Seems like a kernel bug in HPD storm handling. The driver correctly falls
> back to polling, but then errors because of an HPD interrupt. Note that this
> happens on USB-C, which might be relevant:
>
> <7> [71.911207] [drm:__intel_tc_port_lock [i915]] Port F/TC#4: TC port mode
> reset (dp-alt -> tbt-alt)
>
> User impact: seems like the driver ends up in a bad state, which could
> result in a blank screen when a monitor with e.g. a bad cable is connected
> via USB-C.</span >
Thanks for the quick assessment. Setting the priority to High.</pre>
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