When I use gnome network manager it indicates that wireless is disabled by hardware switch while it is not. Even in windows I can not turn on my wireless!
I just tried this:
The output was something like this:
Then I have run this command:
and all is fine now :) Have fun :) I hope it will help you :)
To explicitly check your wireless is turn off by hardware switch or not, you can use
Then you can use this command to unblock every blocked component there:
I think this is just a new manifestation of an old problem that affects Vaio laptops. I have one too, ran into the same problem with 12.04 (beta 2), and had success using the same solution I used with Ubuntu 11.*:
Let me know if that works for you. I think Ubuntu gets confused by having both "sony-wifi" and "acer-wireless" (which you can see in the previous answers "sudo rfkill list all"), and the rmmod will clear the "acer-wireless" option.
A more permanent version of this solution, suggested on this thread http://ubuntuforums.org/archive/index.php/t-1859633.html, is to just blacklist it by adding
and then restarting your system.
Check your BIOS settings. In my laptop's BIOS, there is an option of shutting down Wireless, Bluetooth and other networking interfaces.
The other problem might be that there is a physical problem with your Wireless hardware
The other case might be that your hardware is blacklisted. Check if the module is blacklisted in
if it is not present in this, check other blacklist files in
Additionally please check that in
protected by Community♦ Jul 19 '12 at 6:24
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