Problems with iwl4965 wireless

Fri May 16 05:11:06 UTC 2008

Mail Lists wrote:
> John W. Linville wrote:
>> O
>> You may wish to try the latest available F8 kernel in Fedora.  It has
>> some recent fixes that have improved the situation for a number of
>> iwl3945 and iwl4965 users (but not all of them):
>>
>>     http://koji.fedoraproject.org/koji/buildinfo?buildID=47941
>>
>> Hth!
>>
>> John
>>   
>  Just tried kernel-2.6.24.7-92.fc8
>  Same problem.
>  The magic does not always work - same with latest kernel
>
>  It is quite frustrating not to be able to use wireless ... sniff sniff.
>
>  Any other suggestions ?
>
>
Hi,

I am having a similar experience. My wireless network worked with kernel 
2.6.24.4-64 and prior versions, but it does not start at boot with 
kernel 2.6.24.5-85. Neither does it startup when booting with kernel 
2.6.24.7-92. I can start my iwl4965 (aliased in modprobe.conf to wlan0) 
manually by executing the following commands:

iwconfig wlan0 ap xx:xx:xx:xx:xx:xx
iwconfig wlan0 channel 11
/etc/rc.d/init.d/network restart

where, of course, I enter my access point's mac address. I am not using 
NetworkManager.

It would appear that something was reordered surrounding the wireless 
card startup at 2.6.24.5-85.  Here are snippets around the network 
messages from my dmesg output after booting in each of the three most 
recent kernel builds.

2.6.24.4-64 (iwl4965 wireless starts up at boot)

firewire_ohci: Added fw-ohci device 0000:09:01.0, OHCI version 1.0
sdhci: SDHCI controller found at 0000:09:01.1 [1180:0822] (rev 22)
ACPI: PCI Interrupt 0000:09:01.1[B] -> GSI 17 (level, low) -> IRQ 17
sdhci:slot0: Will use DMA mode even though HW doesn't fully claim to 
support it.
mmc0: SDHCI at 0xfeaff400 irq 17 DMA
iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.2.26kds
iwl4965: Copyright(c) 2003-2008 Intel Corporation
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:04:00.0 to 64
iwl4965: Detected Intel Wireless WiFi Link 4965AGN
iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
phy0: Selected rate control algorithm 'iwl-4965-rs'
usb 4-2: new full speed USB device using uhci_hcd and address 2
...
ip_tables: (C) 2000-2006 Netfilter Core Team
ADDRCONF(NETDEV_UP): eth0: link is not ready
usb 4-2: USB disconnect, address 2
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
Registered led device: iwl-phy0:radio
Registered led device: iwl-phy0:assoc
Registered led device: iwl-phy0:RX
Registered led device: iwl-phy0:TX
ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Initial auth_alg=0
wlan0: authenticate with AP xx:xx:xx:xx:xx:xx
wlan0: RX authentication from xx:xx:xx:xx:xx:xx (alg=0 transaction=2 
status=0)
wlan0: authenticated
wlan0: associate with AP xx:xx:xx:xx:xx:xx
wlan0: RX AssocResp from xx:xx:xx:xx:xx:xx (capab=0x431 status=0 aid=5)
wlan0: associated
wlan0: CTS protection enabled (BSSID=xx:xx:xx:xx:xx:xx)
wlan0: switched to long barker preamble (BSSID=xx:xx:xx:xx:xx:xx)
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
fuse init (API version 7.9)

2.6.24.5-85 (wireless does not startup)

firewire_ohci: Added fw-ohci device 0000:09:01.0, OHCI version 1.0
usb 4-2: new full speed USB device using uhci_hcd and address 2
iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.2.26kds
iwl4965: Copyright(c) 2003-2008 Intel Corporation
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:01:00.0 to 64
NVRM: loading NVIDIA UNIX x86_64 Kernel Module  169.12  Thu Feb 14 
17:51:09 PST 2008
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:04:00.0 to 64
iwl4965: Detected Intel Wireless WiFi Link 4965AGN
firewire_core: created device fw0: GUID 00e0180003a38746, S400
iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
phy0: Selected rate control algorithm 'iwl-4965-rs'
ACPI: PCI interrupt for device 0000:04:00.0 disabled
input: 4965AGN as /class/input/input8
ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 22 (level, low) -> IRQ 22
...
ip_tables: (C) 2000-2006 Netfilter Core Team
ADDRCONF(NETDEV_UP): eth0: link is not ready
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
Registered led device: iwl-phy0:radio
Registered led device: iwl-phy0:assoc
Registered led device: iwl-phy0:RX
Registered led device: iwl-phy0:TX
ADDRCONF(NETDEV_UP): wlan0: link is not ready
usb 4-2: USB disconnect, address 2
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
fuse init (API version 7.9)

2.6.24.7-92 (wireless does not startup)

ACPI: PCI Interrupt 0000:09:01.1[B] -> GSI 17 (level, low) -> IRQ 17
sdhci:slot0: Will use DMA mode even though HW doesn't fully claim to 
support it.
mmc0: SDHCI at 0xfeaff400 irq 17 DMA
ACPI: PCI Interrupt 0000:09:01.0[A] -> GSI 16 (level, low) -> IRQ 16
firewire_ohci: Added fw-ohci device 0000:09:01.0, OHCI version 1.0
input: Video Bus as /class/input/input7
ACPI: Video Device [VGA] (multi-head: yes  rom: no  post: no)
iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.2.26kds
iwl4965: Copyright(c) 2003-2008 Intel Corporation
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:04:00.0 to 64
iwl4965: Detected Intel Wireless WiFi Link 4965AGN
iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
phy0: Selected rate control algorithm 'iwl-4965-rs'
usb 4-2: new full speed USB device using uhci_hcd and address 2
ACPI: PCI interrupt for device 0000:04:00.0 disabled
input: 4965AGN as /class/input/input8
firewire_core: created device fw0: GUID 00e0180003a38746, S400
...
ip_tables: (C) 2000-2006 Netfilter Core Team
usb 4-2: USB disconnect, address 2
ADDRCONF(NETDEV_UP): eth0: link is not ready
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17
Registered led device: iwl-phy0:radio
Registered led device: iwl-phy0:assoc
Registered led device: iwl-phy0:RX
Registered led device: iwl-phy0:TX
ADDRCONF(NETDEV_UP): wlan0: link is not ready
ACPI: PCI interrupt for device 0000:04:00.0 disabled
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
fuse init (API version 7.9)