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[Bug 1160188] Re: ATH9K wireless signal weak


FYI 3.11 kernel landed in Ubuntu 13.10 development version, so this is
now also fixed there without any tricks.

Ubuntu 13.04 is apparently getting a partial fix (not sure if it's
enough, two patches were originally mentioned as being relevant) in its
next kernel update (bug #1204666), and I've attached a patch to bug
#971809 that would bring the other part there too if picked up by kernel
stable release update team.

** Changed in: linux (Ubuntu)
       Status: Confirmed => Fix Released

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  ATH9K wireless signal weak

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” package in Gentoo Linux:

Bug description:
  AR9485 Wireless Network Adapter has a low signal when in close range
  of station.

  I disabled hardware encryption with putting:
    options ath9k nohwcrypt=1

  That doesn't seemed to help.

  The signal has 2 bars while it has full strength in windows. (I am 2
  meters away from the wifi station)

  s400ca:~$ rfkill list all
  2: asus-wlan: Wireless LAN
   Soft blocked: no
   Hard blocked: no
  3: asus-bluetooth: Bluetooth
   Soft blocked: no
   Hard blocked: no
  4: hci0: Bluetooth
   Soft blocked: no
   Hard blocked: no
  5: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-26-generic 3.5.0-26.42
  ProcVersionSignature: Ubuntu 3.5.0-26.42-generic
  Uname: Linux 3.5.0-26-generic x86_64
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: amd64
   /dev/snd/controlC0:  jintux     1988 F.... pulseaudio
  Date: Tue Mar 26 06:33:06 2013
  InstallationDate: Installed on 2013-03-25 (0 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MarkForUpload: True
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=52689dee-4881-48b6-8cca-602e15292652 ro quiet splash vt.handoff=7
   linux-restricted-modules-3.5.0-26-generic N/A
   linux-backports-modules-3.5.0-26-generic  N/A
   linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/28/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: S400CA.203
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: S400CA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrS400CA.203:bd09/28/2012:svnASUSTeKCOMPUTERINC.:pnS400CA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnS400CA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: S400CA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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