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[Bug 1734020] Re: QCA Rome bluetooth connection cannot be established after S3

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Anthony Wong <anthony.wong@xxxxxxxxxx>
Date: Wed, 20 Dec 2017 07:36:35 -0000
Reply-to: Bug 1734020 <1734020@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: hwe-next
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1734020

Title:
  QCA Rome bluetooth connection cannot be established after S3

Status in HWE Next:
  Fix Released
Status in linux-oem package in Ubuntu:
  Invalid
Status in linux-oem source package in Xenial:
  Fix Released

Bug description:
  SRU justification:

  [Impact]
  QCA Rome Bluetooth hosts (btusb) failed to search/pair after S3.

  [Fix]
  The device may loses its power under S3, hence doing a USB reset upon resume can solve the issue.

  [Test Case]
  With this patch, bluetooth connection always gets established after S3.

  [Regression Potential]
  Minimal, only QCA Rome needs this quirk. Also, reset-resume is kinda mandatory for tons of USB devices.

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