centrino - Radio Frequency Kill Switch

alan at comm-tech.org alan at comm-tech.org
Mon Jan 10 00:48:02 UTC 2005

Although drivers are loading on this laptop, the onboard wifi device
will not activate. 

ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 0.11
ipw2200: Copyright(c) 2003-2004 Intel Corporation
ACPI: PCI interrupt 0000:02:06.0[A] -> GSI 10 (level, low) -> IRQ 10
ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
ipw2200: Radio Frequency Kill Switch is On:
Kill switch must be turned off for wireless networking to work.

Apparently this is to do with the wifi button to the left of the
keyboard that turns on the wireless device. In order for windows to use
the device, it uses software hooked to this button to activate the wifi
device, but I cannot find the equivalent for Linux.

I have been trying the solution here: http://rfswitch.sourceforge.net/,
but cannot compile the driver in Ubuntu suggested by the Laptop Support
Table. (possibly cos its ipw2100) Has anyone come across these Switches
on newer Laptops, and how to get them working in Ubuntu?

Laptop is a Fujitsu Siemens Amilo Pro v2000

uname -a
Linux ubuntuF #1 Sat Jan 8 19:14:01 UTC 2005 i686

lspci -v
0000:02:06.0 Network controller: Intel Corp. Intel(R) PRO/Wireless
2200BG (rev 05)
Subsystem: Intel Corp.: Unknown device 2701
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at e0203000 (32-bit, non-prefetchable)
Capabilities: [dc] Power Management version 2


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