Possibly duplicate of bug 2161309
Try i915.enable_dpcd_backlight=0

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https://bugs.launchpad.net/bugs/2165164

Title:
  i915 Meteor Lake (ThinkPad P1 Gen 7): PHY A message bus unresponsive
  on resume from long s2idle dwell — C10 PLL left unprogrammed, display
  unrecoverable

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