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[Launchpad Bug Tracker <1372409@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xorg (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1372409

Title:
  The monitor won't wake up after going to sleep (initiated by locking,
  automatic or manual)

Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  UPDATE: After around ten minutes of inactivity, it is again possible
  to wake the monitor from sleep!

  I am using the 3.16.3 kernel (edit: now 3.17 RC6!) and
  Mesa/drivers/Xorg from the Oibaf PPA - but this also happens when
  using drivers from the regular repositories.

  I would say that this bug is CRITICAL, because you can lose important
  work.

  Steps to reproduce:

  1. Lock computer (Ctrl+Alt+L) or let it lock itself automatically
  2. Wait a few seconds for the monitor to shut down (LED blue->yellow and displayed warning)
  3. Try to wake it up

  Expected behavior: the monitor is woken up and the Ubuntu lock screen
  is displayed

  Actual behavior: the monitor stays off, black screen

  Additional information:

   - Suspending and resuming works fine.
   - Switching to a TTY doesn't work either, but the keyboard is responding (can turn caps lock on/off).
   - I have to restart the computer to get it in a working state after this happens. (therefore SEVERE)

  It works on these configurations:

   - proprietary AMD drivers (fglrx) - this works.
   - kernel 3.13 (default)

  Relevant hardware:

   - graphics card: AMD Radeon HD 7790
   - monitor: HP ZR2330w

  My current solution:

  Not locking the computer, and disabling automatic lock in Brightness &
  Lock settings (set to Never). I did not disable suspending, because as
  I said, that worked.

  AUTOMATICALLY COLLECTED INFORMATION:
  ====================

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  Uname: Linux 3.16.3-031603-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Mon Sep 22 13:07:00 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: I just need to know a workaround
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XT [Radeon HD 7790/8770 / R9 260 OEM] [1002:665c] (prog-if 00 [VGA controller])
     Subsystem: Micro-Star International Co., Ltd. [MSI] Radeon HD 7790 OC [1462:2930]
  InstallationDate: Installed on 2014-07-14 (69 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: To be filled by O.E.M. To be filled by O.E.M.
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.3-031603-generic root=UUID=6e991daa-60a1-41a6-86b9-099d96d697f2 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/09/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2501
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: M5A97 EVO R2.0
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2501:bd04/09/2014:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: To be filled by O.E.M.
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56+git1409220630.666788~gd~t
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.4~git1409220730.d69faf~gd~t
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.4~git1409220730.d69faf~gd~t
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.99+git1409110730.56c7fb~gd~t
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.916+git1409220730.376037~gd~t
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11+git1409010731.3cd4c8~gd~t
  xserver.bootTime: Mon Sep 22 13:01:53 2014
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        LITEON Technology USB Multimedia Keyboard KEYBOARD, id 8
   input        Logitech USB Optical Mouse MOUSE, id 9
   input        Eee PC WMI hotkeys   KEYBOARD, id 10
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.15.1-0ubuntu2.1
  xserver.video_driver: radeon

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