Hi,
    Could you run this command and provide the result?
sudo cat /sys/class/drm/card1-eDP-1/edid | od -A x -t x1z | head -3

BR
    An

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https://bugs.launchpad.net/bugs/2155235

Title:
  Intel i915 eDP-1 "Failed to enable link training" after suspend on
  Alder Lake

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