** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: linux-oem-osp1 (Ubuntu Focal)
   Importance: Undecided
       Status: Fix Released

** No longer affects: linux (Ubuntu Bionic)

** No longer affects: linux-oem-osp1 (Ubuntu Focal)

** Changed in: linux (Ubuntu Focal)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1836030

Title:
  enable realtek ethernet device ASPM function

Status in HWE Next:
  Fix Released
Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-osp1 package in Ubuntu:
  Fix Released
Status in linux-oem-osp1 source package in Bionic:
  Fix Released
Status in linux source package in Focal:
  In Progress

Bug description:
  [Impact]
  The PC state stays at PC3 if realtek ethernet doesn't enable ASPM.

  [Fix]
  Discussed with upstream and they would like to use sysfs to toggle the ASPM 
link states, but the patches didn't get merged yet, so we merger them as SAUCE 
patches.

  [Test]
  Verified on machines with realtek ethernet device, the ethernet works well 
and the system can enter PC10.

  [Regression Potential]
  High. From upstream maintainer, enable realtek ethernet ASPM may lead to some 
serious issue, so regression is expected. Those regression should come from old 
realtek chips, we'll make sure all new platforms with realtek NIC have no any 
issues.

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