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[Bug 1543782] Re: Complete system freeze some time after screensaver starts.


** Attachment added: "output of journalctrl"

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  Complete system freeze some time after screensaver starts.

Status in gnome-screensaver package in Ubuntu:

Bug description:
  Ever since updating to 15.10 my computer has been freezing every day.
  Usually this happens after I've left work, and since I leave my
  computer on, I manually start the screensaver (ctrl+alt+L), and when I
  come back the next morning, the computer is completely unresponsive,
  even to sysrq. Gnome screensaver itself doesn't appear to be the
  culprit since I can turn it on, then log back into my system any time
  within perhaps 5 minutes. Looking at my root journalctrl output,
  yesterday, it appears to have crashed 30 minutes after I logged out (I
  was zeroing a drive with dd, and was issuing a kill -USR1 to track the
  progress every 30 seconds).

  At first I thought it might be a botched upgrade from 15.04, so I
  tried a clean reinstall last week, but it still freezes. There is also
  nothing in the logs that would indicate an error/crash.

  The only potentially related piece of information is that I use gnome-
  shell, installed via ubuntu-gnome-desktop.

  I'm not sure what package to file this under since I don't know how to
  reproduce, or how to diagnose the issue. Any debugging advice will be
  appreciated since this issue is really starting to annoy me.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: gnome-screensaver 3.6.1-7ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
  Uname: Linux 4.2.0-27-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Tue Feb  9 13:20:44 2016
  EcryptfsInUse: Yes
  GnomeSessionIdleInhibited: No
  GnomeSessionInhibitors: None
   org.gnome.desktop.session session-name 'gnome'
   org.gnome.desktop.session idle-delay uint32 600
  InstallationDate: Installed on 2016-02-04 (4 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: gnome-screensaver
  UpgradeStatus: No upgrade log present (probably fresh install)

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