Shortly after I saw this on my thinkpad I saw the same problem also on a non-linux machine connected to the same USB hub. I wrote this problem off to be a hardware issue of my USB hub and bought a new one and haven't seen this problem since...
Thanks again and sorry for not updating you earlier. -- 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/1250966 Title: [Lenovo ThinkPad X220] usb port turns itself off Status in “linux” package in Ubuntu: Incomplete Bug description: 1 USB Hub with 4 ports, the hub is powered. Since recent kernel the hub suddenly powers of the ports and i need to replug it. I have connected: - keyboard - mouse - yubikey - webcam (not in use) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-2-generic 3.12.0-2.7 ProcVersionSignature: Ubuntu 3.12.0-2.7-generic 3.12.0 Uname: Linux 3.12.0-2-generic i686 ApportVersion: 2.12.6-0ubuntu1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: asac 5544 F.... pulseaudio /dev/snd/controlC0: asac 5544 F.... pulseaudio Date: Wed Nov 13 19:03:11 2013 HibernationDevice: RESUME=UUID=1ee02b29-e1dc-4974-8efb-9b20cf8f19de MachineType: LENOVO 4286CTO MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-2-generic root=UUID=092c7391-4af6-423f-8498-5a03021b8bb7 ro quiet splash pcie_aspm=force i915.i915_enable_rc6=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.12.0-2-generic N/A linux-backports-modules-3.12.0-2-generic N/A linux-firmware 1.117 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2013-11-09 (4 days ago) dmi.bios.date: 05/18/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET46WW (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 4286CTO 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:bvr8DET46WW(1.16):bd05/18/2011:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4286CTO dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1250966/+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
