[Bug 1194608]

[Phillip Susi]

FYI, when you unbind the scsi disk driver by writing the 1 to the delete
knob in sysfs, it takes care of issuing the synchronize cache and
start/stop unit commands.  You can see this in dmesg.  You mentioned the
usb mass storage driver, which I would not have thought of.  I'd bet
that is the issue.  My guess is that most drives appear to work because
they shut off their LED when given the STOP UNIT command when the scsi
disk driver unbinds, but if the usb mass storage driver is still bound,
some drives decide to keep the LED on.

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https://bugs.launchpad.net/bugs/1194608

Title:
  Safely remove does not work (LED is on) on USB 3.0 flash

Status in abstraction for enumerating and managing block devices:
  Confirmed
Status in “udisks” package in Ubuntu:
  Confirmed

Bug description:
  I have VAIO F13Z1R with two USB 3.0 ports and Transcend TS64GJF760 USB
  flash.

  If I insert this flash to USB 3.0 port, unmount it and do safely remove - LED is still on.
  By safely remove I mean:
  udisks --detach /dev/sdb
  or
  Nautilus/Desktop -> Safely remove drive.

  It seems that device is removed from system - it does not listed in:
  lsusb
  fdisk -l
  blkid.

  
  For me it is more comfortable to disconnect flash which LED is off.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: udisks 1.0.4-5ubuntu2.1
  ProcVersionSignature: Ubuntu 3.2.0-48.74-generic 3.2.46
  Uname: Linux 3.2.0-48-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: amd64
  CheckboxSubmission: a3c9de473bf7a483a92609c6b20d2aee
  CheckboxSystem: b633b4f40868d491c2ae5b50030ce6f3
  CustomUdevRuleFiles: 51-usbblaster.rules 10-vboxdrv.rules z80_user.rules
  Date: Tue Jun 25 22:52:11 2013
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  MachineType: Sony Corporation VPCF13Z1R
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-48-generic root=UUID=3306dd80-2101-4251-b811-9691fdf7d487 ro init=/sbin/init -v noplymouth
  SourcePackage: udisks
  UpgradeStatus: Upgraded to precise on 2012-09-28 (270 days ago)
  dmi.bios.date: 10/20/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R0190Y9
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0190Y9:bd10/20/2010:svnSonyCorporation:pnVPCF13Z1R:pvrC607OEHZ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VPCF13Z1R
  dmi.product.version: C607OEHZ
  dmi.sys.vendor: Sony Corporation

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