I recently bought a Toshiba NB255-N245 and installed 11.04 with Wubi. It's working great, except that the Fn+F8 key, which should toggle the wifi on and off, does not have any effect in Ubuntu. It works fine in Windows 7. I'd like to be able to switch off sometimes to save battery, etc. Any ideas how to make it work? I tried
rfkill block, but the wifi light on the indicator panel stays on. Or if it's been turned off on the Windows side,
rfkill unblock won't turn it on.
As I said in a comment,
sudo ifconfig wlan0 down brings the wifi down temporarily, but then it comes back up after a few seconds.
I booted up again after having disabled wifi via Fn+F8 on the Windows side. Ubuntu boots up with the indicator light off. I tried
rfkill unblock wifi and
rfkill unblock all with no effect or message.
ifconfig -a does show wlan0, but
sudo ifconfig wlan0 up gives an error message:
SIOCSIFFLAGS: Operation not possible due to RF-kill
This machine has an Atheros chipset, BTW.
07:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
I noticed that the network panel applet reports "wireless is disabled by hardware switch".
I found a bug report for this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/764524