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[Naseer Syed <naseersk@xxxxxxxxx>]

I am not sure whether this is a bug in ubuntu per-se.

I had switched off wireless using the side switch, but could never
enable it back via toggling the switch.

Ultimately, i rebooted using "lenovo quick start" (the "QS" button on
the lower right side of the screen), and was simply able to enable wifi
back using the config option. Rebooted back in ubuntu and the wifi was
working fine again.

If you dont have "quick start", you could try booting under windows and
using the fn+f5 to re-enable wifi.

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https://bugs.launchpad.net/bugs/577114

Title:
  [Lenovo IdeaPad S10-3] Wireless and Bluetooth switch does not work
  correctly on lenovo ideapad s10-3

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: linux-image-2.6.32-21-generic

  I have installed Ubuntu from CD [Ubuntu-Netbook 10.04 _Lucid Lynx_ -
  Beta i386 (20100318)] Wireless has been detected automatically and
  everything worked fine.

  One day after installing updates on the 26.04.2010, i noticed that after Booting the Wireless interface and bluetooth is disabled, regardless of the wireless switch.
  It seems that the switch is turned off, regardless if the switch is on or off, even Fn-F5 (Software-Switch for Wireless/Bluetooth) does not help.

  WORKAROUND: After a suspend and wake, do:
  sudo rmmod ath9k
  sudo modprobe ath9k

  Then wireless is available and connects automatically. Bluetooth is
  also available. Everything works fine then.

  But when booting the kernel from power off, the wireless led is on when grub is shown and gets turned off, when the kernel boots and both, Wlan and Bluetooth are disabled.
  When Wlan is working and I turn off the wireless hardware switch, Wlan and Bluetooth gets disabled as expected, but when I turn it on again, it does not get reactivated and I have to do the workaround again to get it working again.

  I don't think that it is defective hardware, because:
    * Before the problem appeared the first time, everything was working fine.
    * After doing the workaround, everything works fine
    * The wlan led is on in the grub menu, but it turns off, when the kernel is loaded.

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  michael    1882 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0x40600000 irq 22'
     Mixer name	: 'Realtek ALC272'
     Components	: 'HDA:10ec0272,17aa4004,00100001'
     Controls      : 14
     Simple ctrls  : 8
  DistroRelease: Ubuntu 10.04
  HibernationDevice: RESUME=UUID=a30e85e0-cb12-4510-b5fe-db4fff465466
  InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Beta i386 (20100318)
  MachineType: LENOVO S10-3
  Package: linux (not installed)
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-22-generic root=UUID=7341b634-5ce1-417c-b3d0-f001464c95f1 ro quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Regression: Yes
  RelatedPackageVersions: linux-firmware 1.34
  Reproducible: Yes
  Tags:  ubuntu-une lucid networking regression-update needs-upstream-testing
  Uname: Linux 2.6.32-22-generic i686
  UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 02/03/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 2ACN21WW
  dmi.board.name: Mariana3A
  dmi.board.vendor: Lenovo
  dmi.board.version: Rev 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Lenovo
  dmi.chassis.version: Rev 1.0
  dmi.modalias: dmi:bvnLENOVO:bvr2ACN21WW:bd02/03/2010:svnLENOVO:pnS10-3:pvrLenovo:rvnLenovo:rnMariana3A:rvrRev1.0:cvnLenovo:ct10:cvrRev1.0:
  dmi.product.name: S10-3
  dmi.product.version: Lenovo
  dmi.sys.vendor: LENOVO

  The case label says:

  Lenovo IdeaPad S10-3
  Model name: 0647
  Factory ID: CS20

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