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rated 0 times [  92] [ 0]  / answers: 1 / hits: 284136  / 2 Years ago, mon, july 25, 2022, 5:28:21

I am getting this error as a part of this problem here but since this problem is totally different issue I think it is better to consider this issue separately. My wlan0 is down. When I try to turn it on with 



$  sudo ifconfig wlan0 up



SIOCSIFFLAGS: Operation not possible due to RF-kill


and then 



$ sudo rfkill list all



0: phy0: Wireless LAN 



     Soft blocked: yes



     Hard blocked: no



1: tpacpi_bluetooth_sw: Bluetooth



     Soft blocked: yes



     Hard blocked: yes


What does the error msg mean? What is the RF-kill?



Hardware Specs



  $ sudo lshw -class network

  *-network

       description: Ethernet interface

       product: 82573L Gigabit Ethernet Controller

       vendor: Intel Corporation

       physical id: 0

       bus info: pci@0000:02:00.0

       logical name: eth0

       version: 00

       serial: 00:16:d3:22:96:c2

       capacity: 1Gbit/s

       width: 32 bits

       clock: 33MHz

       capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation

       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.2.20-k2 firmware=0.5-1 latency=0 link=no multicast=yes port=twisted pair

       resources: irq:44 memory:ee000000-ee01ffff ioport:2000(size=32)

  *-network DISABLED

       description: Wireless interface

       product: PRO/Wireless 3945ABG [Golan] Network Connection

       vendor: Intel Corporation

       physical id: 0

       bus info: pci@0000:03:00.0

       logical name: wlan0

       version: 02

       serial: 00:13:02:46:63:74

       width: 32 bits

       clock: 33MHz

       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless

       configuration: broadcast=yes driver=iwl3945 driverversion=2.6.38-11-generic firmware=15.32.2.9 latency=0 link=no multicast=yes wireless=IEEE 802.11abg

       resources: irq:45 memory:edf00000-edf00fff


OS Version and Kernel Version



$ cat /etc/lsb-release 

DISTRIB_ID=Ubuntu

DISTRIB_RELEASE=11.04

DISTRIB_CODENAME=natty

DISTRIB_DESCRIPTION="Ubuntu 11.04"

$ uname -r

2.6.38-11-generic


[Update]



When I apply Fossfreedom's suggestion, I get "SIOCSIFFLAGS: No such device". The kernel is for some reason rejecting the card, as pointed by FF.



Dmesg after disabling and enabling wli3945, with Blocked WiFi



# modprobe -r iwl3945

# modprobe iwl3945

# dmesg|tail -n 50

[ 6835.430537] PM: resume of devices complete after 1889.701 msecs

[ 6835.430800] PM: resume devices took 1.888 seconds

[ 6835.430845] PM: Finishing wakeup.

[ 6835.430847] Restarting tasks ... done.

[ 6835.502666] video LNXVIDEO:00: Restoring backlight state

[ 6835.572203] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id

[ 6835.852380] e1000e 0000:02:00.0: irq 46 for MSI/MSI-X

[ 6835.908162] e1000e 0000:02:00.0: irq 46 for MSI/MSI-X

[ 6835.908775] ADDRCONF(NETDEV_UP): eth0: link is not ready

[ 6836.919274] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=600

[ 6837.769253] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=600

[ 6859.097311] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0

[ 6882.076501] e1000e 0000:02:00.0: irq 46 for MSI/MSI-X

[ 6882.132190] e1000e 0000:02:00.0: irq 46 for MSI/MSI-X

[ 6882.132924] ADDRCONF(NETDEV_UP): eth0: link is not ready

[ 6883.722633] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx

[ 6883.722645] e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO

[ 6883.723071] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

[ 6894.000044] eth0: no IPv6 routers present

[ 6896.551932] exe (2743): /proc/2743/oom_adj is deprecated, please use /proc/2743/oom_score_adj instead.

[ 8289.212078] usb 1-2: new high speed USB device using ehci_hcd and address 4

[ 8289.280270] hub 1-0:1.0: unable to enumerate USB device on port 2

[ 8289.608059] usb 1-2: new high speed USB device using ehci_hcd and address 5

[ 8291.006963] usb 1-2: USB disconnect, address 5

[ 8291.308072] usb 1-2: new high speed USB device using ehci_hcd and address 6

[ 8291.591228] usb 1-2: USB disconnect, address 6

[ 9598.556083] usb 1-2: new high speed USB device using ehci_hcd and address 7

[ 9599.059441] usb 1-2: USB disconnect, address 7

[11838.072332] iwl3945 0000:03:00.0: Master Disable Timed Out, 100 usec

[11838.072993] iwl3945 0000:03:00.0: PCI INT A disabled

[11850.210319] cfg80211: Calling CRDA to update world regulatory domain

[11850.218431] cfg80211: World regulatory domain updated:

[11850.218436] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

[11850.218440] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[11850.218444] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[11850.218448] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[11850.218452] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[11850.218456] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[11850.291510] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s

[11850.291515] iwl3945: Copyright(c) 2003-2010 Intel Corporation

[11850.291601] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17

[11850.291624] iwl3945 0000:03:00.0: setting latency timer to 64

[11850.331841] iwl3945 0000:03:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels

[11850.331847] iwl3945 0000:03:00.0: Detected Intel Wireless WiFi Link 3945ABG

[11850.332023] iwl3945 0000:03:00.0: irq 45 for MSI/MSI-X

[11850.332274] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain 

[11850.332436] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'

[11850.361710] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9

[11850.361885] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch

[11850.365924] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch


Dmesg with Unblocked WiFi



# rfkill list all

1: tpacpi_bluetooth_sw: Bluetooth

    Soft blocked: no

    Hard blocked: yes

2: phy0: Wireless LAN

    Soft blocked: no

    Hard blocked: no

# dmesg|tail -n 50

[   27.649606] fb0: inteldrmfb frame buffer device

[   27.649608] drm: registered panic notifier

[   27.649815] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0

[   27.662754] HDA Intel 0000:00:1b.0: PCI INT B -> GSI 17 (level, low) -> IRQ 17

[   27.662760] hda_intel: probe_mask set to 0x1 for device 17aa:2010

[   27.662831] HDA Intel 0000:00:1b.0: irq 46 for MSI/MSI-X

[   27.662868] HDA Intel 0000:00:1b.0: setting latency timer to 64

[   27.769460] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x100-0x3af: excluding 0x170-0x177 0x1f0-0x1f7 0x2f8-0x2ff 0x370-0x377

[   27.774801] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x3e0-0x4ff: excluding 0x3f0-0x3f7 0x4d0-0x4d7

[   27.775742] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x820-0x8ff: clean.

[   27.788575] pcmcia_socket pcmcia_socket0: cs: IO port probe 0xc00-0xcf7: clean.

[   27.789382] pcmcia_socket pcmcia_socket0: cs: memory probe 0x0c0000-0x0fffff: excluding 0xc0000-0xd3fff 0xdc000-0xfffff

[   27.789466] pcmcia_socket pcmcia_socket0: cs: memory probe 0xa0000000-0xa0ffffff: clean.

[   27.789547] pcmcia_socket pcmcia_socket0: cs: memory probe 0x60000000-0x60ffffff: excluding 0x60000000-0x60ffffff

[   27.789632] pcmcia_socket pcmcia_socket0: cs: IO port probe 0xa00-0xaff: clean.

[   27.813146] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X

[   27.868221] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X

[   27.868866] ADDRCONF(NETDEV_UP): eth0: link is not ready

[   27.876620] IBM TrackPoint firmware: 0x0e, buttons: 3/3

[   27.892982] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/input/input6

[   28.121555] ppdev: user-space parallel port driver

[   29.426589] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx

[   29.426597] e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO

[   29.426893] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

[   31.009483] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0

[   34.474875] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0

[   40.160038] eth0: no IPv6 routers present

[ 7394.332227] exe (1666): /proc/1666/oom_adj is deprecated, please use /proc/1666/oom_score_adj instead.

[ 7587.420396] iwl3945 0000:03:00.0: PCI INT A disabled

[ 7599.728554] cfg80211: Calling CRDA to update world regulatory domain

[ 7599.736628] cfg80211: World regulatory domain updated:

[ 7599.736632] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

[ 7599.736637] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7599.736641] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 7599.736645] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 7599.736649] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7599.736653] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7599.797314] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s

[ 7599.797319] iwl3945: Copyright(c) 2003-2011 Intel Corporation

[ 7599.797397] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17

[ 7599.797419] iwl3945 0000:03:00.0: setting latency timer to 64

[ 7599.837714] iwl3945 0000:03:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels

[ 7599.837719] iwl3945 0000:03:00.0: Detected Intel Wireless WiFi Link 3945ABG

[ 7599.837880] iwl3945 0000:03:00.0: irq 45 for MSI/MSI-X

[ 7599.838124] Registered led device: phy0-led

[ 7599.838170] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain 

[ 7599.838335] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'

[ 7599.980440] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9

[ 7599.980656] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch

[ 7599.983562] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch


Dmesg and Iwl3945 without Blocked WiFi



# modprobe -r iwl3945

# modprobe iwl3945

# dmesg| tail -n 50

[   29.426597] e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO

[   29.426893] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

[   31.009483] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0

[   34.474875] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0

[   40.160038] eth0: no IPv6 routers present

[ 7394.332227] exe (1666): /proc/1666/oom_adj is deprecated, please use /proc/1666/oom_score_adj instead.

[ 7587.420396] iwl3945 0000:03:00.0: PCI INT A disabled

[ 7599.728554] cfg80211: Calling CRDA to update world regulatory domain

[ 7599.736628] cfg80211: World regulatory domain updated:

[ 7599.736632] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

[ 7599.736637] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7599.736641] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 7599.736645] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 7599.736649] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7599.736653] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7599.797314] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s

[ 7599.797319] iwl3945: Copyright(c) 2003-2011 Intel Corporation

[ 7599.797397] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17

[ 7599.797419] iwl3945 0000:03:00.0: setting latency timer to 64

[ 7599.837714] iwl3945 0000:03:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels

[ 7599.837719] iwl3945 0000:03:00.0: Detected Intel Wireless WiFi Link 3945ABG

[ 7599.837880] iwl3945 0000:03:00.0: irq 45 for MSI/MSI-X

[ 7599.838124] Registered led device: phy0-led

[ 7599.838170] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain 

[ 7599.838335] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'

[ 7599.980440] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9

[ 7599.980656] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch

[ 7599.983562] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch

[ 7906.428550] iwl3945 0000:03:00.0: PCI INT A disabled

[ 7913.242835] cfg80211: Calling CRDA to update world regulatory domain

[ 7913.249969] cfg80211: World regulatory domain updated:

[ 7913.249973] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

[ 7913.249978] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7913.249982] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 7913.249986] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

[ 7913.249990] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7913.249994] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

[ 7913.311805] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s

[ 7913.311810] iwl3945: Copyright(c) 2003-2011 Intel Corporation

[ 7913.311885] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17

[ 7913.311907] iwl3945 0000:03:00.0: setting latency timer to 64

[ 7913.352172] iwl3945 0000:03:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels

[ 7913.352177] iwl3945 0000:03:00.0: Detected Intel Wireless WiFi Link 3945ABG

[ 7913.352330] iwl3945 0000:03:00.0: irq 45 for MSI/MSI-X

[ 7913.352601] Registered led device: phy0-led

[ 7913.352642] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain 

[ 7913.352806] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'

[ 7913.385208] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9

[ 7913.385384] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch

[ 7913.387138] iwl3945 0000:03:00.0: Radio disabled by HW RF Kill switch

More From » intel-wireless
 Answers
6

Soft-blocking



The output to sudo rfkill list shows that your network card is "soft-blocked".



This could happen when the wireless card has been signalled to switch-off via the kernel.



Try the following steps:




  1. run in a terminal:



    sudo rfkill unblock wifi; sudo rfkill unblock all


  2. rerun sudo rfkill list to confirm that the card has been unblocked.


  3. reboot


  4. rerun sudo rfkill list again to confirm unblocking as been retained.


  5. rerun sudo lshw -class network - you should now see that the kernel has recognised (or not) the wireless card.




If the wireless kernel module has been recognised (it should not say "unclaimed"), Network Manager should now be able to see wireless networks that are available in your vacinity.





Diagnose the kernel issue



If the network card is not recognised - and you have confirmed sudo rfkill list shows no blocking (i.e. both soft blocked and hard blocked are "no") then add the following to your question:



sudo modprobe -r iwl3945

sudo modprobe iwl3945

dmesg | tail -n 50


Hopefully this will point out the error - for example a firmware issue not loading.



Loading new firmware



If it is a firmware issue then you can try maybe one of the following:




  • install the backports wireless drivers:



i.e.



sudo apt-get install linux-backports-modules-cw-2.6.39-generic


Then reboot - test for software blocking etc.




  • get the latest firmware as follows:



i.e.



wget http://intellinuxwireless.org/iwlwifi/downloads/iwlwifi-3945-ucode-15.32.2.9.tgz



tar xzf iwlwifi-3945-ucode-15.32.2.9.tgz



cd iwlwifi-3945-ucode-15.32.2.9



sudo cp iwlwifi-3945-2.ucode /lib/firmware


Then reboot - test for software blocking etc.



N.B. your dmesg trace should indicate what the name of the firmware it is having an issue with. Possibly you need to rename "iwlwifi-3945-2.ucode" to whatever the name of the firmware it was expecting.


[#43431] Tuesday, July 26, 2022, 2 Years  [reply] [flag answer]
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