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[André Campos Rodovalho <andre.rodovalho@xxxxxxxxx>]

I had this issue with an GA-970A-D3P motherboard, chipset is AMD 970/AMD
SB 950.

I set IOMMU controller = Enable on BIOS, now I can boot from my USB
stick with no problems...

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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.

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