Public bug reported:

[Impact]
Laptops default to S2Idle can't be woken up by keyboard during suspend.
Most laptops can be woken up by keyboard in S3. To align the behavior,
let's do the same for S2Idle laptops.

[Fix]
Set the serio keyboard wakeup to "enabled" as default.

[Test]
With this patch, XPS 9370 can be woken up by its keyboard during
suspend. 

[Regression Potential]
Low. This has the same effect as chaging sysfs knob "power/wakeup" from
"disabled" to "enabled".

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1798552

Title:
  Enable keyboard wakeup for S2Idle laptops

Status in linux package in Ubuntu:
  New

Bug description:
  [Impact]
  Laptops default to S2Idle can't be woken up by keyboard during suspend.
  Most laptops can be woken up by keyboard in S3. To align the behavior,
  let's do the same for S2Idle laptops.

  [Fix]
  Set the serio keyboard wakeup to "enabled" as default.

  [Test]
  With this patch, XPS 9370 can be woken up by its keyboard during
  suspend. 

  [Regression Potential]
  Low. This has the same effect as chaging sysfs knob "power/wakeup" from
  "disabled" to "enabled".

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