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[Bug 1358493] Re: Blank screen after locked screen.


Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.17 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc1-utopic/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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  Blank screen after locked screen.

Status in “linux” package in Ubuntu:

Bug description:
  This new report is identical to 1337373. I thought this bug was fixed,
  but it is not. From the previous bug report:

  This appears to be the same bug others have reported --- lock screen
  is used, the display goes blank, and then the display remains black
  after a key or the mouse is touched.

  For me, this only occurs after the display has been blanked for a
  period of some hours (typically overnight).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-34-generic 3.13.0-34.60
  ProcVersionSignature: Ubuntu 3.13.0-34.60-generic
  Uname: Linux 3.13.0-34-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
   /dev/snd/controlC1:  rmcd       2224 F.... pulseaudio
   /dev/snd/controlC0:  rmcd       2224 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Mon Aug 18 15:49:55 2014
  HibernationDevice: RESUME=UUID=efde90cc-bb24-43bb-9662-8886fda1ebc3
  InstallationDate: Installed on 2014-04-24 (116 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: LENOVO 3212C9U
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=c84e1a00-9bad-4918-9f90-8a80deb0b12b ro quiet splash vt.handoff=7
   linux-restricted-modules-3.13.0-34-generic N/A
   linux-backports-modules-3.13.0-34-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/17/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 9SKT81AUS
  dmi.board.name: MAHOBAY
  dmi.board.vendor: LENOVO
  dmi.board.version: NO DPK
  dmi.chassis.type: 3
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvr9SKT81AUS:bd06/17/2014:svnLENOVO:pn3212C9U:pvrThinkCentreM92p:rvnLENOVO:rnMAHOBAY:rvrNODPK:cvnLENOVO:ct3:cvrNone:
  dmi.product.name: 3212C9U
  dmi.product.version: ThinkCentre M92p
  dmi.sys.vendor: LENOVO

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