kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Tags removed: kernel-bug-exists-upstream
** Tags added: needs-upstream-testing

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https://bugs.launchpad.net/bugs/1156346

Title:
  168c:002b Atheros AR9285 Wireless on Ubuntu 12.10 is slow, unstable
  and has a weak signal.

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  There is 3 room in my flat:
  room0: here is my AP
  room1: there is one wall between room0 and room1
  room2: there is two wall between room0 and room2

  If i use my new Lenovo G580 (Atheros 9285) with Windows 8  or my old
  notebook (HP NX6310 (Broadcom wifi) with Kubuntu 8.04 ) the signal is
  stable in every room.

  If i use my new Lenovo G580 with Ubuntu 12.10:
  room0: no problem good signal
  room1: poor signal, signal lost very frequantly
  room2: no signal

  I probe the kernel from http://ppa.launchpad.net/canonical-kernel-
  team/ppa/ubuntu too. But the problem still exist.

  # env COLUMNS=230 dpkg -l | grep 3.5.0-26|grep -v headers|grep -v libc|cut -b -92
  ii  linux-backports-modules-cw-3.6-3.5.0-26-generic     3.5.0-26.12                    amd64
  ii  linux-image-3.5.0-26-generic                        3.5.0-26.42                    amd64
  ii  linux-image-extra-3.5.0-26-generic                  3.5.0-26.42                    amd64

  WORKAROUND: Be in the same room as the access point.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-25-generic 3.5.0-25.39
  ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4
  Uname: Linux 3.5.0-25-generic x86_64
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sunfire    1953 F.... pulseaudio
  Date: Sun Mar 17 21:16:47 2013
  HibernationDevice: RESUME=UUID=08735d5d-dd74-4e7c-bd32-9f874f6d201c
  InstallationDate: Installed on 2013-02-14 (31 days ago)
  InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
  MachineType: LENOVO 20157
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=hu_HU.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=7af14e9e-cc8c-4338-9969-8854e92502e1 ro acpi_backlight=vendor quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-25-generic N/A
   linux-backports-modules-3.5.0-25-generic  N/A
   linux-firmware                            1.95
  RfKill:
   1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/06/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 62CN90WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lenovo G580
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003WIN8 STD MLT
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo G580
  dmi.modalias: dmi:bvnLENOVO:bvr62CN90WW:bd09/06/2012:svnLENOVO:pn20157:pvrLenovoG580:rvnLENOVO:rnLenovoG580:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoG580:
  dmi.product.name: 20157
  dmi.product.version: Lenovo G580
  dmi.sys.vendor: LENOVO

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