Any updates on this? I met exact same problem. I am running ubuntu 14.04 LTS on lenovo(thinkpad) X201. The network card is really unstable and keep turning off randomly. I have to keep rebooting my laptop to fix this issue !!!!
** Changed in: linux (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1180787 Title: Thinkpad X201 iwlwifi module stopped working in latest -21 kernel (OK in -19) Status in linux package in Ubuntu: New Bug description: The wifi on my Thinkpad X201 has stopped working in Ubuntu 13.04 with the latest 3.8.0-21-generic kernel (it is fine in -19 and earlier). Errors messages on loading module from /var/log/kern.log: May 16 13:35:44 X201 kernel: [ 22.892644] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S May 16 13:35:44 X201 kernel: [ 22.899826] iwlwifi 0000:02:00.0: Radio type=0x1-0x3-0x1 May 16 13:35:45 X201 kernel: [ 23.256348] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S May 16 13:35:45 X201 kernel: [ 23.263029] iwlwifi 0000:02:00.0: Radio type=0x1-0x3-0x1 May 16 13:35:45 X201 kernel: [ 23.407800] tp_smapi 0.41 loading... May 16 13:35:45 X201 kernel: [ 23.407905] tp_smapi successfully loaded (smapi_port=0xb2). May 16 13:35:46 X201 kernel: [ 24.388325] iwlwifi 0000:02:00.0: Failed to start RT ucode: -110 May 16 13:35:46 X201 kernel: [ 24.388654] iwlwifi 0000:02:00.0: Unable to initialize device. --- ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: country GB: (2402 - 2482 @ 40), (N/A, 20) (5170 - 5250 @ 40), (N/A, 20) (5250 - 5330 @ 40), (N/A, 20), DFS (5490 - 5710 @ 40), (N/A, 27), DFS DistroRelease: Ubuntu 13.04 HibernationDevice: RESUME=UUID=49d4f2dd-e03a-4d98-b2ca-8a26f08ee954 InstallationDate: Installed on 2012-10-04 (223 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20120926) Lsusb: Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 004: ID 05c6:9205 Qualcomm, Inc. MachineType: LENOVO 3680WXQ MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic root=UUID=be2980a4-c13a-4f50-8747-4eff0a318858 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8 RelatedPackageVersions: linux-restricted-modules-3.8.0-21-generic N/A linux-backports-modules-3.8.0-21-generic N/A linux-firmware 1.106 Tags: raring Uname: Linux 3.8.0-21-generic x86_64 UpgradeStatus: Upgraded to raring on 2013-04-02 (43 days ago) UserGroups: adm cdrom dialout dip fuse lpadmin plugdev sambashare sudo dmi.bios.date: 09/15/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET53WW (1.23 ) dmi.board.name: 3680WXQ dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET53WW(1.23):bd09/15/2010:svnLENOVO:pn3680WXQ:pvrThinkPadX201:rvnLENOVO:rn3680WXQ:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3680WXQ dmi.product.version: ThinkPad X201 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1180787/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp