My desktop's PCI wireless card is always scanning for available wireless networks, but I only rarely use it. Can I keep the radio turned off until I need it?
"Modern" solution using Network Manager: simply uncheck the Wireless Enabled option at the Network Manager applet (KDE: Network Management). The command
The wireless state is remembered in the file
Put this before
(old answer that involves editing file
A bit hacky, but it should work. A wireless card can be disabled using the
How does it work? It does not have a manpage, running
Now, if you want to disable the wireless functions at boottime, add the command to /etc/rc.local by running
When finished, press Ctrl + X, then press Y to save it and press Enter to accept the filename.
If you decide to activate the device later, run:
Personally I use Jupiter the power management applet to disable the wireless on my laptop as it is controlled by a special button. I don't think is in the main repo I had to add a ppa from Andrew at Webupd8 to get it.
Hope this helps.
The easiest way to disable your wireless card is to right-click on the NetworkManager indicator (small icon on top-right on the panel), and untick the
You could add
ensure that, if you're using NetworkManager (I have version 0.8.4~git.20110319t175609.d14809b-0ubuntu3), you go to menu "Edit Connections" -> "Wireless" tab, click on the connection, click "Edit", and make sure that, in the "Wireless" tab, the "Connect Automatically" checkbox is NOT checked.