I could repro this prob with 2.6.22-6-generic on an HP/Compaq 6710b but with 2.6.22-7-generic it works correctly.
$ lspci 00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 0c) 00:02.0 VGA compatible controller: Intel Corporation Mobile Integrated Graphics Controller (rev 0c) 00:02.1 Display controller: Intel Corporation Mobile Integrated Graphics Controller (rev 0c) 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #5 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03) 00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3) 00:1f.0 ISA bridge: Intel Corporation Mobile LPC Interface Controller (rev 03) 00:1f.1 IDE interface: Intel Corporation Mobile IDE Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation Mobile SATA AHCI Controller (rev 03) 02:04.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b6) 02:04.1 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832 (rev 02) 03:00.0 USB Controller: NEC Corporation USB (rev 43) 03:00.1 USB Controller: NEC Corporation USB (rev 43) 10:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02) 18:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
~$ uname -a Linux aporo2 2.6.22-7-generic #1 SMP Mon Jun 25 17:33:14 GMT 2007 i686 GNU/Linux
$ lsmod | grep ipw ipw3945 119712 1 ieee80211 35656 1 ipw3945
$ dmesg | grep ipw [ 13.228000] ipw3945: Intel(R) PRO/Wireless 3945 Network Connection driver for Linux, 1.2.1mp [ 13.228000] ipw3945: Copyright(c) 2003-2006 Intel Corporation [ 13.232000] ipw3945: Detected Intel PRO/Wireless 3945ABG Network Connection [ 15.500000] ipw3945: Radio Frequency Kill Switch is On: [ 107.900000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels) [ 198.000000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels) [ 358.792000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels) [ 478.936000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels) [ 479.768000] ipw3945: Error sending ADD_STA: time out after 500ms. [ 599.312000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels)
I could repro this prob with 2.6.22-6-generic on an HP/Compaq 6710b but with 2.6.22-7-generic it works correctly.
$ lspci
00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile Integrated Graphics Controller (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation Mobile LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation Mobile IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Mobile SATA AHCI Controller (rev 03)
02:04.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b6)
02:04.1 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832 (rev 02)
03:00.0 USB Controller: NEC Corporation USB (rev 43)
03:00.1 USB Controller: NEC Corporation USB (rev 43)
10:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)
18:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
~$ uname -a
Linux aporo2 2.6.22-7-generic #1 SMP Mon Jun 25 17:33:14 GMT 2007 i686 GNU/Linux
$ lsmod | grep ipw
ipw3945 119712 1
ieee80211 35656 1 ipw3945
$ dmesg | grep ipw
[ 13.228000] ipw3945: Intel(R) PRO/Wireless 3945 Network Connection driver for Linux, 1.2.1mp
[ 13.228000] ipw3945: Copyright(c) 2003-2006 Intel Corporation
[ 13.232000] ipw3945: Detected Intel PRO/Wireless 3945ABG Network Connection
[ 15.500000] ipw3945: Radio Frequency Kill Switch is On:
[ 107.900000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels)
[ 198.000000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels)
[ 358.792000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels)
[ 478.936000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels)
[ 479.768000] ipw3945: Error sending ADD_STA: time out after 500ms.
[ 599.312000] ipw3945: Detected geography ABG (13 802.11bg channels, 4 802.11a channels)