I did. I had a DVD of v14.04. it worked on it. Now, I have updated to 19.10
gradually. It is working fine.

On Thu, 21 Nov 2019, 10:31 pm Kai-Heng Feng, <kai.heng.f...@canonical.com>
wrote:

> Would it be possible for you to do a reverse kernel bisection?
>
> First, find the first -rc kernel works and the last -rc kernel doesn’t
> work from http://kernel.ubuntu.com/~kernel-ppa/mainline/
>
> Then,
> $ sudo apt build-dep linux
> $ git clone git://
> git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> $ cd linux
> $ git bisect start
> $ git bisect new $(the working version you found)
> $ git bisect old $(the non-working version found)
> $ make localmodconfig
> $ make -j`nproc` deb-pkg
> Install the newly built kernel, then reboot with it.
> If it doesn’t work,
> $ git bisect old
> Otherwise,
> $ git bisect new
> Repeat to "make -j`nproc` deb-pkg" until you find the commit fixes the
> issue.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1852884
>
> Title:
>   Qualcomm Atheros AR9227 wifi pci did not work
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852884/+subscriptions
>

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1852884

Title:
  Qualcomm Atheros AR9227 wifi pci did not work

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Qualcomm Atheros AR9227 wifi pci did not work after upgrade.

  dmesg output:

     90.875175] ath: phy0: Mac Chip Rev 0xfffc0.f is not supported by this 
driver
  [   90.875179] ath: phy0: Unable to initialize hardware; initialization 
status: -95
  [   90.875182] ath9k 0000:04:05.0: Failed to initialize device
  [   90.875338] ath9k: probe of 0000:04:05.0 failed with error -95

  
  lspci -nnk output:

  04:05.0 Unclassified device [0080]: Qualcomm Atheros AR9227 Wireless Network 
Adapter [168c:002d] (rev 01)
        Subsystem: Qualcomm Atheros AR9227 Wireless Network Adapter [168c:0101]
        Kernel modules: ath9k

  It worked earlier.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: linux-image-5.3.0-23-generic 5.3.0-23.25
  ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
  Uname: Linux 5.3.0-23-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu8.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pks        2321 F.... pulseaudio
   /dev/snd/controlC1:  pks        2321 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Nov 17 09:54:51 2019
  HibernationDevice: RESUME=UUID=36751e84-b0bc-4f92-93db-1e4b5ced3979
  InstallationDate: Installed on 2017-04-02 (958 days ago)
  InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.2)
  IwConfig:
   enp0s22f2u3  no wireless extensions.
   
   lo        no wireless extensions.
   
   enp3s0    no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-23-generic 
root=UUID=99c76891-c019-4681-afee-0266d099d50b ro persistent splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.3.0-23-generic N/A
   linux-backports-modules-5.3.0-23-generic  N/A
   linux-firmware                            1.183.2
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to eoan on 2019-11-14 (2 days ago)
  dmi.bios.date: 05/01/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1702
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M5A88-M
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1702:bd05/01/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM5A88-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.family: To Be Filled By O.E.M.
  dmi.product.name: System Product Name
  dmi.product.sku: To Be Filled By O.E.M.
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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