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[Ernie Dunbar <ernied@xxxxxxxxxxxxx>]

This bug also affects my Eee 701SD. However, this bug persists despite
having installed the latest Ubuntu-Eee on November 10 (8.04.1).

Since I'm a unix admin (and thanks to a few tips from others posting in
this thread) I poked around in /etc/acpi/eeepc-wifi-toggle.sh to find
out what it's doing, and I made a couple of changes:

The function "disable_wireless" is defined twice. The first instance
actually tries to *enable* the wireless NIC, so I removed that one. This
should be fixed in future releases.

In the function "disable_atheros_wireless", the script tries to disable
the driver "ath0", but the wireless driver is actually "wlan0" in this
kernel (2.6.24-21-eeepc). The same goes for "enable_atheros_wireless".

Next I used the same commands manually on the command line to see where
exactly it dies. It turns out that the "ifconfig down wlan0" and
"modprobe -r ath_pci" commands work just fine. I'm not entirely sure if
this actually powers down the wireless, but it sure removes the
networking. The next step, 'echo 0 > /proc/acpi/asus/wlan' crashes the
computer however. But not before disabling the wireless in BIOS. In
order to re-enable it, I must reboot (of course ;) and enable the
wireless card in BIOS. When the computer boots up, the wireless is
enabled.

If anyone has a clean install of the EeePC 701, maybe the original
Xandros configuration might hold some clues.,.

-- 
Eee 1000 - Disabling Wireless Crashes System
https://bugs.launchpad.net/bugs/261141
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Status in Ubuntu Eee: Fix Released

Bug description:
Wireless is setup correctly, however when using the hotkey (FN&F2), the disable wireless icon appears - but the system then crashes.  Only responds to a hard shutdown.