<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <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#c3">Comment # 3</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 <a class="email" href="mailto:contact@emersion.fr" title="emersion <contact@emersion.fr>"> emersion</a> <pre>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.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>