Hi,
I'm having some troubles with my iwl4965 -- this is Lenovo 3000 N200 notebook
with Debian GNU/Linux 5.0.1 (stable lenny) installed. I cannot make "iwlist
wlan0 scan" work, while manually configuring the interface via
/etc/network/interfaces works with minor glitches. Here is some background
information.
# lspci -vvv | grep Wireless -A 8
04:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN
[Kedron] Network Connection (rev 61)
Subsystem: Intel Corporation Lenovo ThinkPad T61
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR+ <PERR- INTx-
Interrupt: pin A routed to IRQ 17
Region 0: Memory at f8000000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwl4965
Kernel modules: iwl4965
# dmesg | grep iwl
[ 8.773792] iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux,
1.2.26ks
[ 8.773792] iwl4965: Copyright(c) 2003-2008 Intel Corporation
[ 8.834235] iwl4965: Detected Intel Wireless WiFi Link 4965AGN
[ 8.879309] iwl4965: Tunable channels: 13 802.11bg, 19 802.11a channels
[ 8.879603] phy0: Selected rate control algorithm 'iwl-4965-rs'
# lsmod | grep iwl
iwl4965 92872 0
firmware_class 6816 1 iwl4965
iwlcore 23520 1 iwl4965
rfkill 5652 2 iwlcore
mac80211 139712 2 iwl4965,iwlcore
led_class 3908 1 iwlcore
cfg80211 21576 2 iwl4965,mac80211
# dpkg -l | grep iwl
ii firmware-iwlwi 0.14+lenny1 Binary firmware for Intel Wireless 3945 and
# uname -r
2.6.26-2-686
# iwconfig wlan0
wlan0 IEEE 802.11 ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=0 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Encryption key:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
# iwlist wlan0 scan
wlan0 Interface doesn't support scanning : Network is down
I suspected old firmwares and replaced them with more recent ones, but no
effects.
# apt-cache show firmware-iwlwifi | grep version
* Intel Wireless 3945 firmware, version 15.28.1.6
* Intel Wireless 4965 firmware, version 228.57.1.21
* Intel Wireless 4965 firmware, version 228.57.2.21
# cp -r /lib/firmware ~/lib#firmware
# cd /lib/firmware
# rm *.ucode
# wget
http://intellinuxwireless.org/iwlwifi/downloads/iwlwifi-4965-ucode-228.57.2.23.tgz
# tar -zxf iwlwifi-4965-ucode-228.57.2.23.tgz
# cp iwlwifi-4965-ucode-228.57.2.23/iwlwifi-4965-2.ucode .
# chown root:root iwlwifi-4965-2.ucode
# chmod 644 iwlwifi-4965-2.ucode
OTOH, strangely, lsof doesn't return anything for /lib/firmware.
# lsof | grep /lib/firmware
# _
Any ideas about what might be the problem? I always compiled my own kernel in
Debian GNU/Linux because of similar driver problems. But this time I want to
give the bundled kernel a try.
Regards.
