Also, it would be good to know if this bug goes away if you boot back into the previous Trusty kernel(3.13.0-22).
** Changed in: linux (Ubuntu) Importance: Medium => High ** Tags added: performing-bisect -- 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/1304808 Title: All USB ports/devices randomly stop working Status in “linux” package in Ubuntu: Confirmed Bug description: I do not know how to reliably reproduce this, but since an update in trusty a couple of days ago I am getting a random USB device stop working and then they all start going one by one. The mouse and keyboard included in this of course. This has happened to me before and it was fixed in saucy. This is a regression. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-23-generic 3.13.0-23.45 ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8 Uname: Linux 3.13.0-23-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ed 2480 F.... pulseaudio CurrentDesktop: Unity Date: Wed Apr 9 15:07:40 2014 HibernationDevice: RESUME=UUID=73dd7b46-df18-4ae4-9a16-7e635959e1b1 IwConfig: eth0 no wireless extensions. lo no wireless extensions. virbr0 no wireless extensions. MachineType: System manufacturer System Product Name ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-23-generic root=UUID=38c98076-521e-408e-af6a-2e8e00de0f05 ro nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw RelatedPackageVersions: linux-restricted-modules-3.13.0-23-generic N/A linux-backports-modules-3.13.0-23-generic N/A linux-firmware 1.127 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-01-20 (78 days ago) dmi.bios.date: 05/28/2008 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: ASUS M3N72-D ACPI BIOS Revision 0202 dmi.board.name: M3N72-D dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: 1.XX dmi.chassis.asset.tag: 123456789000 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSM3N72-DACPIBIOSRevision0202:bd05/28/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N72-D:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1304808/+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