kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
   Importance: Medium => High

** Tags added: kernel-da-key

-- 
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/1255522

Title:
  [Acer Aspire 5943G] Slow copy transfer rates by bad USB 2.0 detection
  in external usb storage devices

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Confirmed issue with slow transfer rates (<1.5 MB/s) for 3 different
  external USB 2.0 hardisk (toshiba 1 TB, SAMSUNG 512 GB, Hitachi 1 TB)
  with 3.12.0-4-generic from trusty. It is mainly a bad detection as USB
  1.0 instead of USB 2.0 in dmesg (check_highspeed is indeed bogus).
  Copy 20 GB takes days, instead of hours for this issue. The issue is
  mainly to copy or move files to a USB external storage device from the
  laptop or desktop.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.12.0-4-generic 3.12.0-4.10
  ProcVersionSignature: Ubuntu 3.12.0-4.10-generic 3.12.1
  Uname: Linux 3.12.0-4-generic i686
  NonfreeKernelModules: fglrx
  ApportVersion: 2.12.7-0ubuntu1
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  shakaran   3667 F.... pulseaudio
   /dev/snd/controlC0:  shakaran   3667 F.... pulseaudio
   /dev/snd/pcmC0D0p:   shakaran   3667 F...m pulseaudio
  CurrentDesktop: Unity
  Date: Wed Nov 27 13:19:24 2013
  HibernationDevice: RESUME=UUID=ca085202-e6f9-4736-b311-6d9a361ec3d6
  InstallationDate: Installed on 2013-02-03 (297 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MachineType: Acer Aspire 5943G
  ProcFB: 0 simple
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-4-generic root=UUID=7f18d659-ec06-4afe-b3be-13b15de376b2 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.12.0-4-generic N/A
   linux-backports-modules-3.12.0-4-generic  N/A
   linux-firmware                            1.117
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2013-10-31 (27 days ago)
  dmi.bios.date: 10/21/2010
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.15
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Aspire 5943G
  dmi.board.vendor: Acer
  dmi.board.version: V1.15
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.15
  dmi.modalias: dmi:bvnAcer:bvrV1.15:bd10/21/2010:svnAcer:pnAspire5943G:pvrV1.15:rvnAcer:rnAspire5943G:rvrV1.15:cvnAcer:ct10:cvrV1.15:
  dmi.product.name: Aspire 5943G
  dmi.product.version: V1.15
  dmi.sys.vendor: Acer

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1255522/+subscriptions