It was my computer that had the problem Petter reported, and the problem is gone as of kernel 3.8.0-29.
All the best Mari Wang ** Changed in: linux (Ubuntu) Status: Incomplete => Fix Released -- 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/1208976 Title: Wireless card stopped working after last kernel upgrade on thinkpad x1 carbon laptop Status in “linux” package in Ubuntu: Fix Released Bug description: Seems to be related to the btusb module, see error messages at the end of attached dmesg output. Works fine with kernel version 3.8.0-26.38 . ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-27-generic 3.8.0-27.40 ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4 Uname: Linux 3.8.0-27-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.1 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: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Tue Aug 6 21:35:37 2013 HibernationDevice: RESUME=UUID=be6e1a5d-4b39-44b1-9894-6e318fe7e3a8 IwConfig: wwan0 no wireless extensions. eth0 no wireless extensions. lo no wireless extensions. MachineType: LENOVO 3460D4G MarkForUpload: True ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-27-generic root=/dev/mapper/hostname--vg-root ro splash quiet vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-27-generic N/A linux-backports-modules-3.8.0-27-generic N/A linux-firmware 1.106 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/04/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G6ET93WW (2.53 ) dmi.board.asset.tag: Not Available dmi.board.name: 3460D4G dmi.board.vendor: LENOVO dmi.board.version: Win8 Pro DPK TPG dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG6ET93WW(2.53):bd02/04/2013:svnLENOVO:pn3460D4G:pvrThinkPadX1Carbon:rvnLENOVO:rn3460D4G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3460D4G dmi.product.version: ThinkPad X1 Carbon dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1208976/+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