group.of.nepali.translators team mailing list archive

[Timo Aaltonen <tjaalton@xxxxxxxxxx>]

** Also affects: linux (Ubuntu Bionic)
   Importance: Medium
       Status: Triaged

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

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https://bugs.launchpad.net/bugs/1764684

Title:
  Fix an issue that some PCI devices get incorrectly suspended

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Triaged
Status in linux-oem package in Ubuntu:
  New
Status in linux source package in Xenial:
  Invalid
Status in linux-oem source package in Xenial:
  New
Status in linux source package in Bionic:
  Triaged
Status in linux-oem source package in Bionic:
  New

Bug description:
  ===SRU Justification===
  [Impact]
  Some PCI device are not power managed by system firmware get runtime suspended incorrectly. In this case it's an xHC device, which can't be woken up by plugging USB device.

  [Test]
  With the patch, the xHC no longer get put to suspend incorrectly. USB devices can work on the xHC now.

  [Fix]
  We need to check if the device is power managed by system firmware, also if it supports PME from D3hot.

  [Regression Potential]
  Low.
  It fixes a regression caused by the PM core refactor.

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