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[Bug 1307114] Re: Blank screen after resume if lid closed

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Damian Campbell <dcampbell305@xxxxxxxxxxx>
Date: Mon, 18 Aug 2014 13:07:13 -0000
Reply-to: Bug 1307114 <1307114@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

*** This bug is a duplicate of bug 1357090 ***
    https://bugs.launchpad.net/bugs/1357090

** This bug is no longer a duplicate of bug 1303736
   [SRU] Black screen after wakeup from suspending by closing the laptop lid
** This bug has been marked a duplicate of bug 1357090
   Black screen on resume Xubuntu 14.04.1 #1303736 NOT fixed

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https://bugs.launchpad.net/bugs/1307114

Title:
  Blank screen after resume if lid closed

Status in “xorg” package in Ubuntu:
  Confirmed

Bug description:
  I have a Lenovo G570 laptop (Intel Sandy Bridge graphics). If I
  suspend via the user interface, then resume by pressing the power
  button, everything works. However, when closing the lid to suspend, I
  observe the following sequence:

  1. Close lid, wait a few seconds for suspend.
  2. Open lid. Laptop starts up, light-locker screen is visible.
  3. Type password into light-locker, hit enter.
  4. Screen goes blank. It is totally black i.e. it seems that the backlight is off.

  Moving the mouse, pressing keys or trying to change the brightness
  with the keyboard shortcut does not bring back the display. I can get
  a console by C-A-F1 and then restart lightdm to get a working display
  again.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Sun Apr 13 13:14:37 2014
  InstallationDate: Installed on 2014-03-10 (34 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140225)
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)

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