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[Bug 1168255] Re: Enabling wakeup on the USB Root Controller prevents computer from suspending


No longer using Ubuntu.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Invalid

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  Enabling wakeup on the USB Root Controller prevents computer from

Status in linux package in Ubuntu:

Bug description:
  Steps to reproduce:
  1) As root: # echo enabled > /sys/bus/usb/devices/2-1/power/wakeup
  2) Attempt to suspend computer.

  Expected results:
  Computer should suspend.

  Observed results
  Computer goes into suspend then immediately wakes up. There is nothing informative in /var/log/pm-suspend.log

  This bug was discovered by a udev script that I wrote to allow waking my computer up from suspension by attached USB devices. This is the script:
  ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="15d9", ATTRS{idProduct}=="0a4d" RUN+="/bin/sh -c 'echo enabled > /sys$env{DEVPATH}/../power/wakeup'"

  A recent regression meant that this now prevents the computer from
  suspending as above. This script now writes "enabled" to both
  /sys/bus/usb/devices/2-1/power/wakeup and
  /sys/bus/usb/devices/2-1/2-1.1/power/wakeup . I'm not sure if the
  regression was that it now writes to the former as well as the latter,
  or if it always has written to both, and a regression in pm-suspend
  now cannot deal with the former. If I write "disabled" to the former,
  I can suspend as normal.

  More information:
  $ lsusb -t
   /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/2p, 480M
      |__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/8p, 480M
          |__ Port 1: Dev 5, If 0, Class=HID, Driver=usbhid, 1.5M
          |__ Port 5: Dev 3, If 0, Class='bInterfaceClass 0xe0 not yet handled', Driver=btusb, 12M
          |__ Port 5: Dev 3, If 1, Class='bInterfaceClass 0xe0 not yet handled', Driver=btusb, 12M

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: pm-utils 1.4.1-9
  ProcVersionSignature: Ubuntu 3.5.0-27.46-generic
  Uname: Linux 3.5.0-27-generic x86_64
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: amd64
  Date: Fri Apr 12 16:32:39 2013
  InstallationDate: Installed on 2012-12-16 (116 days ago)
  InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: pm-utils
  UpgradeStatus: Upgraded to quantal on 2013-01-31 (71 days ago)

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