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[b3nmore <1349879@xxxxxxxxxxxxxxxxxx>]

> can you please do "dmesg > /tmp/dmesg.txt" after such a resume and
attach /tmp/dmesg.txt here? Thanks!

Rebooted and executed the steps mentioned above. dmesg is attached.

** Attachment added: "dmesg.log"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349879/+attachment/4166687/+files/dmesg.log

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https://bugs.launchpad.net/bugs/1349879

Title:
  powering off an usb3 device causes kernel to resume immediately after
  suspend

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  After powering off an usb3 disk (e.g. udisksctl power-off -b /dev/sdc)
  the system immediately resumes after suspend. This does not happen, if
  I umount the device and disconnect it. Usb devices < 3.0 seem not to
  be affected.

  How to reproduce:
  1) plug an usb3 device to an usb3 port and mount it
  2) umount it
  3) power it off: udisksctl power-off -b /dev/sdX
  4) suspend: (e.g. echo mem > /sys/power/state)

  result: system suspends and immediately resumes

  Package: udisks2 (2.1.3-1)

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