UbuntuHelp:WifiDocs/Driver/Atheros

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https://help.ubuntu.com/community/WifiDocs/Driver/Atheros

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sudo lshw -C network I found these things helpful for me: 1) https://bugs.launchpad.net/bugs/182489

(Synopsis: Add the following line:
blacklist ath_pci
to the /etc/modprobe.d/blacklist file and reboot. If you are running an up-to-date Hardy, this should enable the free/libre ath5k driver.)

2) http://madwifi.org/ticket/1192

(Synopsis:
0. Connect to wired network and install build-essential (sudo apt-get install build-essential)
1. wget http: / /snapshots.madwifi.org/madwifi-hal-0.10.5.6/madwifi-hal-0.10.5.6-r3835-20080801.tar.gz
2. tar -zxvf madwifi-hal-0.10.5.6-r3835-20080801.tar.gz
3. cd madwifi-hal-0.10.5.6-r3835-20080801
4. sudo make
5. sudo make install
6. System -> Administration -> Hardware Drivers -> Uncheck both hal and Atheros support
7. sudo vi /etc/modprobe.d/blacklist -> blacklist ndiswrapper (Do this if you had tried ndiswrapper)

This downloads and installs a non-free binary-only driver for the atheros chipset. You need to rebuild and reinstall the driver every time you update your kernel.

3) The wireless LED on my laptop does not work in linux. I may have pressed the wireless button while troubleshooting and turned off wireless without knowing it. So while fiddling around, I may have installed the right driver but not known it. __