Unblocking Wireless on Dell Inspiron on Ubuntu 12

Due to recent shenanigans—

To unblock all hardware

rfkill unblock all
rfkill list all

For wireless drivers

  1. Open the Terminal
  2. Install the build dependencies if you don’t have it already (but it is installed by default):sudo apt-get install build-essential
  3. Type the commands (steps 3-9): wget https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.18.1/backports-3.18.1-1.tar.xzHere you can get the latest ones from kernel.org site
  4. tar xvf backports-3.18.1-1.tar.xz
  5. cd backports-3.18.1-1/
  6. make defconfig-ath9k
  7. make
  8. sudo make install
    • (type your password)
  9. sudo update-initramfs-u
    • (type your password if needed)
  10. Reboot your pc. #sudo reboot
  11. Remember that after a Kernel update (sudo apt-get dist-upgrade) we have to repeat the steps 4 to 9.

Sources-

http://askubuntu.com/questions/406531/cant-reach-wi-fi-signal-on-ubuntu-but-can-do-it-on-other-os-devices-ath9k

http://askubuntu.com/questions/139036/how-do-i-fix-a-wireless-is-disabled-by-hardware-switch-error

Author: Ajay Ohri

http://about.me/ajayohri

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