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[Grizzly <889071@xxxxxxxxxxxxxxxxxx>]

On Kernel 4.2 now. Less shaky, but sometimes one of the crucial's is SATA II only.
Also, the ATA-Numbers are changing from time to time. So indeed, I am filing a new bug

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https://bugs.launchpad.net/bugs/889071

Title:
  SATA III recognized as SATA II (chipset intel z68)

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  My SSD OCZ vertex 3 60Go SATAIII and my WesternDigital 500Go/s SATAIII
  are recognized as SATA II discs, according to palimpsest. When I run
  hdparm -tT /dev/sd?, it returns me that my SSD works à 300Mo/s which
  means that the disc is effectively limited by the SATA II norm. I have
  tested the same configuration under windows, and the SSD runs at
  480Mo/s in average.

  My chipset is the intel Z68, and I have updated both the motherboard's
  and SSD's BIOS. The AHCI mode is activated.

  Since Ubuntu 12.04, the hdd speed go from 330Mo/s to 360Mo/so.

  I have tested the kenerl 3.4 rc6 without any improvement.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-12-generic 3.0.0-12.20
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jason      1777 F.... pulseaudio
  CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xfa300000 irq 59'
     Mixer name	: 'Realtek ALC892'
     Components	: 'HDA:10ec0892,1043841b,00100302'
     Controls      : 35
     Simple ctrls  : 20
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xfa080000 irq 17'
     Mixer name	: 'Nvidia GPU 12 HDMI/DP'
     Components	: 'HDA:10de0012,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  Date: Fri Nov 11 12:40:07 2011
  HibernationDevice: RESUME=UUID=aec865ce-43e4-4b3e-9bf1-16375f15d4ad
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111010.1)
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=15b45aa7-65f1-4983-bb8a-7d6e8575f68f ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-12-generic N/A
   linux-backports-modules-3.0.0-12-generic  N/A
   linux-firmware                            1.60
  RfKill:

  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:

  dmi.bios.date: 09/14/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0702
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V LE
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0702:bd09/14/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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