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[Launchpad Bug Tracker <1728523@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-firmware - 1.157.15

---------------
linux-firmware (1.157.15) xenial; urgency=medium

  * QCA6174A XR cannot find any WiFi AP (LP: #1728523)
    - ath10k: QCA6174 hw3.0: update board-2.bin
    - ath10k: QCA6174 hw3.0: update board-2.bin
    - ath10k: QCA6174 hw3.0: update board-2.bin

  * Intel 9260/9462/9560 firmware support (LP: #1734243)
    - iwlwifi: add firmware version 33 for new 9000 series
    - linux-firmware: Add firmware file for Intel Bluetooth 9560
    - linux-firmware: Add firmware file for Intel Bluetooth 9260

  * Bluetooth mouse and keyboard connects, works for a few seconds, then
    doesn't react (LP: #1729389)
    - linux-firmware: Update firmware patch for Intel Bluetooth,8260
    - linux-firmware: Update firmware file for Intel Bluetooth 8265
    - linux-firmware: Update firmware patch for Intel Bluetooth 8260

 -- Seth Forshee <seth.forshee@xxxxxxxxxxxxx>  Tue, 12 Dec 2017 08:26:17
-0600

** Changed in: linux-firmware (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1728523

Title:
  QCA6174A XR cannot find any WiFi AP

Status in HWE Next:
  Fix Committed
Status in linux-firmware package in Ubuntu:
  Fix Released
Status in linux-firmware source package in Xenial:
  Fix Released

Bug description:
  SRU Justification
  [Impact]
  Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e]
  Atheros QCA6174 can't find any WiFi APs and got below message in dmesg

  [   16.158772] ath10k_pci 0000:02:00.0: failed to enable dynamic BW: -11
  [   22.162575] ath10k_pci 0000:02:00.0: could not suspend target (-11)
  [   27.533002] ath10k_pci 0000:02:00.0: failed to enable dynamic BW: -11
  [   33.535958] ath10k_pci 0000:02:00.0: could not suspend target (-11)
  [   38.890790] ath10k_pci 0000:02:00.0: failed to enable dynamic BW: -11
  [   44.893968] ath10k_pci 0000:02:00.0: could not suspend target (-11)
  [   46.358194] i2c_designware i2c_designware.0: controller timed out
  [   47.358231] i2c_designware i2c_designware.0: controller timed out
  [   48.358506] i2c_designware i2c_designware.0: controller timed out
  [   49.566240] i2c_designware i2c_designware.2: controller timed out
  [   50.566862] i2c_designware i2c_designware.2: controller timed out
  [   51.566307] i2c_designware i2c_designware.2: controller timed out
  [   52.670330] i2c_designware i2c_designware.3: controller timed out
  [   53.670775] i2c_designware i2c_designware.3: controller timed out
  [   54.670427] i2c_designware i2c_designware.3: controller timed out
  [   60.326619] ath10k_pci 0000:02:00.0: failed to enable dynamic BW: -11
  [   66.327117] ath10k_pci 0000:02:00.0: could not suspend target (-11)
  [   71.678943] ath10k_pci 0000:02:00.0: failed to enable dynamic BW: -11
  [   77.679084] ath10k_pci 0000:02:00.0: could not suspend target (-11)

  It requires updated firmwares to enable it.

  [Test Case]
  After applying the required firmwares, it can search APs and connect to the network.

  [Regression Potential]
  Although the new firmware overwrite the old one, considering it exists in linux-firmware git tree and didn't get any update for 3 month, it should be good with no regression.

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