Please excuse mistake in title, should read acpi activates kill switch (as in switches wifi off)
Reproduce: Install firmware-iwlwifi Reboot machine. wifi is broken /etc/init.d/acpid stop wifi is working again Machine details: 03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02) Using iwlwifi3945 2.6.26-1-686 Packard Bell Easynote Alp Ajax GN3