This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1902577

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1902577

Title:
  TGL system automatically resumes from s2idle when connecting to a
  docking station with a monitor

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Impact]
  TGL systems wake up automatically from s2idle when connecting to a docking
  station with a monitor. The wake-up events are generated when BIOS sets
  ALL_MONITOR_OFF for power-saving on TGL systems.

  [Fix]
  A BIOS workaround is used to skip ALL_MONITOR_OFF with an _OSI string
  "Linux-Dell-USB4-Wakeup".

  [Test]
  Verified on Dell's TigerLake platforms

  [Regression Potential]
  Low. This only works on platforms supporting "Linux-Dell-USB4-Wakeup".
  No other platforms will be affected.

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