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[Tim Schutte <kc8hr@xxxxxxxxxxxxx>]

I can also confirm this problem.

Lenovo X61 laptop

3.16.0-37-generic #51~14.04.1-Ubuntu SMP Wed May 6 15:23:14 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux

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https://bugs.launchpad.net/bugs/1384515

Title:
  Laptop screen dims on logout

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  After upgrading my laptop from Trusty to the Utopic final image, I
  noticed that when I logged out or switched users, the screen would
  dim.  After logging back in, the brightness would not get restored.
  The Display Brightness slider in the Power Manager Plugin still showed
  full brightness, but it obviously was not.  I had to click twice on
  the slider to restore the screen to full brightness.

  I then did a clean install and had the same issue.

  Similar to bug #1302025, but this is not due to inactivity.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xfce4-power-manager 1.4.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Wed Oct 22 21:09:36 2014
  InstallationDate: Installed on 2014-10-23 (0 days ago)
  InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: xfce4-power-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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