** Description changed:

  [Impact]
  Some platforms are set suspend-to-idle (s2idle) as default suspend mode, and 
then they can't resume the system from opening the lid.
  
  [Test Case]
  1. echo s2idle | sudo tee /sys/power/mem_sleep
  2. Close the lid
  3. Open the lid
  
  [Fix]
  According a patch sent to 4.17-rc1, which was not be included before 4.15 
EOL, so we cherry pick the patch to Ubuntu 4.15 kernel.
  
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=147a7d9d25ca2551aab15071cb1f048ecd9b7953
  
  [Regression Potential]
- no regression could be happened
+ Per commit, this change also allows Dells XPS13 9360 blacklisted by commit 
71630b7a832f to use the power button for waking up from suspend-to-idle, no 
regression could be happened

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https://bugs.launchpad.net/bugs/1771542

Title:
  Suspend to idle: Open lid didn't resume

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