[Bug 110932] [CI][RESUME]igt at kms_chamelium@dp-audio-edid - fail - Failed assertion: eld_get_igt(&eld)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110932

--- Comment #5 from emersion <contact at emersion.fr> ---
I can reproduce on re-icl-u with the mini-DP port and a real screen:

1. Unplug everything, boot the machine, run `cat /proc/asound/eld*`: no ELD
present
2. Plug an external screen which supports audio
3. Run dmesg. Grep for "ELD". Notice the lines "[drm:drm_add_edid_modes] ELD
monitor <monitor name>" and "[drm:drm_add_edid_modes] ELD size 36, SAD count 1"
3. Run `cat /proc/asound/eld*`: still no monitor present
4. Play a sound with aplay
5. Run dmesg. A bunch of "[drm:i915_audio_component_get_eld [i915]] Not valid
for port <port>" messages appear.
5. Run `cat /proc/asound/eld*`: monitor appears

Are we supposed to start playing audio to get the correct value in
/proc/asound/eld*?

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