Wifi gone after system freeze [SOLVED]

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Wifi gone after system freeze [SOLVED]

Postby marlar on Tue Feb 15, 2011 4:42 pm

Hi,

Recently (probably since the last major update when the new Debian version was released, although I am not 100% sure) my laptop with LMDE 64bit has been freezing now and then. I was about to post a topic about this when it froze again. But this time, in contrast to the other times where nothing happened, my wifi connection has gone away. Completely. Since this is more urgent, I will wait with the freeze problem until this is solved. Right now I am cabled.

The green wifi icon on my Lenovo T500 is on, indicating that the wifi radio is working. And indeed it works if I boot up in Windows 7. But if I click on the network icon in the Gnome panel, it reports for Wifi: "Device is not managed". What does that mean?

I have tried restarting networking, which reports:

Code: Select all
sudo /etc/init.d/networking restart
Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces ... (warning).
Reconfiguring network interfaces...mount: No route to host
mount: No route to host
done.


I have also inspected the syslog for messages indication the cause of the problem. I have found nothing that to me appears as the "smoking gun", although there are several references to wifi/wlan.

Below I have posted snippets from my syslog dealing with wireless networking. Hopefully these, as well as my info above, can give someone a clue of what is wrong.

Thanks in advance :)

Martin

PS: I have only used level 1-3 updates and haven't tampered with the system. So it is still just a nice and clean LMDE.

syslog
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Feb 15 20:19:38 lenovo kernel: [   10.131174] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27ks
Feb 15 20:19:38 lenovo kernel: [   10.131182] iwlagn: Copyright(c) 2003-2009 Intel Corporation
Feb 15 20:19:38 lenovo kernel: [   10.131318] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
Feb 15 20:19:38 lenovo kernel: [   10.131333] iwlagn 0000:03:00.0: setting latency timer to 64
Feb 15 20:19:38 lenovo kernel: [   10.131458] iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 5300AGN REV=0x24
Feb 15 20:19:38 lenovo kernel: [   10.163414] i801_smbus 0000:00:1f.3: PCI INT A -> GSI 23 (level, low) -> IRQ 23
Feb 15 20:19:38 lenovo kernel: [   10.171725] iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels

Feb 15 20:19:38 lenovo kernel: [   14.927725] iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-2.ucode
Feb 15 20:19:38 lenovo kernel: [   14.979363] iwlagn 0000:03:00.0: loaded firmware version 8.24.2.12
FeFeb 15 20:19:38 lenovo kernel: [   14.927725] iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-2.ucode
Feb 15 20:19:38 lenovo kernel: [   14.979363] iwlagn 0000:03:00.0: loaded firmware version 8.24.2.12
Feb 15 20:19:38 lenovo kernel: [   15.161910] Registered led device: iwl-phy0::radio
Feb 15 20:19:38 lenovo kernel: [   15.161960] Registered led device: iwl-phy0::assoc
Feb 15 20:19:38 lenovo kernel: [   15.162015] Registered led device: iwl-phy0::RX
Feb 15 20:19:38 lenovo kernel: [   15.162057] Registered led device: iwl-phy0::TX
Feb 15 20:19:38 lenovo kernel: [   15.174289] ADDRCONF(NETDEV_UP): wlan0: link is not ready
b 15 20:19:38 lenovo kernel: [   15.161910] Registered led device: iwl-phy0::radio
Feb 15 20:19:38 lenovo kernel: [   15.161960] Registered led device: iwl-phy0::assoc
Feb 15 20:19:38 lenovo kernel: [   15.162015] Registered led device: iwl-phy0::RX
Feb 15 20:19:38 lenovo kernel: [   15.162057] Registered led device: iwl-phy0::TX
Feb 15 20:19:38 lenovo kernel: [   15.174289] ADDRCONF(NETDEV_UP): wlan0: link is not ready

Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPluginIfupdown: guessed connection type (wlan0) = 802-3-ethernet
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: update_connection_setting_from_if_block: name:wlan0, type:802-3-ethernet, id:Ifupdown (wlan0), uuid: 5391eba4-6426-faca-338e-5828034ff9d1
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: addresses count: 1
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: No dns-nameserver configured in /etc/network/interfaces
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: adding wlan0 to iface_connections
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: adding iface wlan0 to well_known_interfaces
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: autoconnect
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPluginIfupdown: management mode: unmanaged
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:19.0/net/eth1, iface: eth1)
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00/0000:00:19.0/net/eth1, iface: eth1): no ifupdown configuration found.
Feb 15 20:19:39 lenovo NetworkManager[1748]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/wlan0, iface: wlan0)

Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> found WiFi radio killswitch rfkill2 (at /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/ieee80211/phy0/rfkill2) (driver <unknown>)
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> found WWan radio killswitch rfkill1 (at /sys/devices/platform/thinkpad_acpi/rfkill/rfkill1) (driver thinkpad_acpi)
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> WiFi enabled by radio killswitch; enabled by state file
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> WWAN enabled by radio killswitch; disabled by state file
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> WiMAX enabled by radio killswitch; enabled by state file
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> Networking is enabled by state file
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): carrier is OFF
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): new Ethernet device (driver: 'e1000e' ifindex: 2)
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): exported as /org/freedesktop/NetworkManager/Devices/0
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): now managed
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): device state change: 1 -> 2 (reason 2)
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): bringing up device.
Feb 15 20:19:39 lenovo kernel: [   44.912474] e1000e 0000:00:19.0: irq 30 for MSI/MSI-X
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): preparing device.
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (eth1): deactivating device (reason: 2).
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> Added default wired connection 'Auto eth1' for /sys/devices/pci0000:00/0000:00:19.0/net/eth1
Feb 15 20:19:39 lenovo kernel: [   44.968131] e1000e 0000:00:19.0: irq 30 for MSI/MSI-X
Feb 15 20:19:39 lenovo kernel: [   44.969580] ADDRCONF(NETDEV_UP): eth1: link is not ready
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (wlan0): driver supports SSID scans (scan_capa 0x01).
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (wlan0): new 802.11 WiFi device (driver: 'iwlagn' ifindex: 3)
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/1
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (usb0): carrier is OFF
Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (usb0): new Ethernet device (driver: 'cdc_ether' ifindex: 4)

Feb 15 20:19:39 lenovo NetworkManager[1748]: <info> (wlan0): supplicant manager state:  down -> idle

Feb 15 20:19:43 lenovo avahi-daemon[1837]: Joining mDNS multicast group on interface wlan0.IPv4 with address 10.0.0.4.
Feb 15 20:19:43 lenovo avahi-daemon[1837]: New relevant interface wlan0.IPv4 for mDNS.
Feb 15 20:19:43 lenovo avahi-daemon[1837]: Network interface enumeration completed.
Feb 15 20:19:43 lenovo avahi-daemon[1837]: Registering new address record for fe80::80:37ff:feec:200 on usb0.*.
Feb 15 20:19:43 lenovo avahi-daemon[1837]: Registering new address record for 10.0.0.4 on wlan0.IPv4.
Feb 15 20:19:43 lenovo avahi-daemon[1837]: Registering HINFO record with values 'X86_64'/'LINUX'.


lspic
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00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:03.0 Communication controller: Intel Corporation Mobile 4 Series Chipset MEI Controller (rev 07)
00:03.3 Serial controller: Intel Corporation Mobile 4 Series Chipset AMT SOL Redirection (rev 07)
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3650
03:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300
04:00.0 Memory controller: Intel Corporation Turbo Memory Controller (rev 11)
15:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
15:00.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
15:00.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
15:00.3 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev ff)
15:00.4 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11)
15:00.5 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11)


iwconfig
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lo        no wireless extensions.

eth1      no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:off/any 
          Mode:Managed  Access Point: Not-Associated   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
         
usb0      no wireless extensions.

vboxnet0  no wireless extensions.
marlar
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Posts: 64
Joined: Thu Dec 10, 2009 9:30 am

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Re: Wifi gone after system freeze [SOLVED]

Postby marlar on Tue Feb 15, 2011 5:53 pm

It's not the first time that simply posting a question also helps me solve the problem myself. I guess it's because that in order to write a thorough post I am forced to think deeply about it, taking care to use the right words etc.

Anyway, I googled around and it turned out that there is not only one, but two services that needs restarting. So:

Code: Select all
sudo /etc/init.d/networking restart
sudo /etc/init.d/network-manager restart


I also changed

Code: Select all
[ifupdown]
managed=false


to

Code: Select all
[ifupdown]
managed=true


in /etc/NetworkManager/NetworkManager.conf although I am not totally sure that step was necessary.
marlar
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Posts: 64
Joined: Thu Dec 10, 2009 9:30 am


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