@rushack: if the problem truly is the same as this issue tracks then the only solution is to turn off the IOMMU feature of your BIOS settings. unfortunately this means that any software that relies on IOMMU (mostly KVM or Xen) will fail to provide the features it supplies.
IOMMU is mainly used to improve speed and compatibility of some hardware accesses by virtualisation utilities such as intel's server ethernet adapters - VMDQ and SR-IOV. -- 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/859137 Title: Motherboard AMD 990FX/SB950 usb don't work Status in “linux” package in Ubuntu: Fix Released Bug description: USB don't work on a ASUS Crosshair V Formula motherboard. If I connect any device to USB 2 printer or flash drive are not recognized. Also USB mouse and keyboard are not recognized on USB 2 connectors. Fortunately if I connect mouse and keyboard to USB 3 connectors they works constantly. If I connect printer or flash drive or external drive box to usb 3 connection fail after some seconds. If I use the USB hub of my Logitech G11 keyboard also the keyboard stop working. I test Ubuntu Oneiric beta1 and all updates since now but the problem it's always present. Also Natty, Maverick and Lucid are effected with this USB malfunction. I test also other distributions such as Fedora 15 and Sabayon 6 and the USB malfunction it's present. I test puppy live cd and USB 2 works but not USB 3. If I use dmesg | tail I have: [ 3603.750117] usb 7-1: device descriptor read/64, error -32 [ 3604.010107] usb 7-1: device descriptor read/64, error -32 [ 3604.270108] usb 7-1: new full speed USB device number 3 using ohci_hcd [ 3604.420123] usb 7-1: device descriptor read/64, error -32 [ 3604.680121] usb 7-1: device descriptor read/64, error -32 [ 3604.940129] usb 7-1: new full speed USB device number 4 using ohci_hcd [ 3605.360112] usb 7-1: device not accepting address 4, error -32 [ 3605.530122] usb 7-1: new full speed USB device number 5 using ohci_hcd [ 3605.950115] usb 7-1: device not accepting address 5, error -32 [ 3605.950169] hub 7-0:1.0: unable to enumerate USB device on port 1 I think this problem it's specific for AMD 990FX/SB950 chipset. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-11-generic 3.0.0-11.18 ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4 Uname: Linux 3.0.0-11-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: paolo 2111 F.... pulseaudio /dev/snd/controlC0: paolo 2111 F.... pulseaudio CRDA: Error: [Errno 2] File o directory non esistente Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe600000 irq 16' Mixer name : 'Realtek ALC889' Components : 'HDA:10ec0889,1043846b,00100004' Controls : 39 Simple ctrls : 23 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xfe080000 irq 25' Mixer name : 'Nvidia GPU 16 HDMI/DP' Components : 'HDA:10de0016,10de0101,00100100' Controls : 16 Simple ctrls : 4 Date: Sun Sep 25 21:30:30 2011 HibernationDevice: RESUME=UUID=7480693f-559a-4a0e-a15d-efdf2771f0fb IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: To be filled by O.E.M. To be filled by O.E.M. ProcEnviron: PATH=(custom, no user) LANG=it_IT.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-11-generic root=UUID=ed1fcb52-a56c-4538-b397-4d2b391b6f14 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-11-generic N/A linux-backports-modules-3.0.0-11-generic N/A linux-firmware 1.60 RfKill: SourcePackage: linux StagingDrivers: zram UpgradeStatus: Upgraded to oneiric on 2011-09-23 (2 days ago) dmi.bios.date: 06/22/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0506 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Crosshair V Formula dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0506:bd06/22/2011:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKComputerINC.:rnCrosshairVFormula:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: To be filled by O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/859137/+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