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[Launchpad Bug Tracker <1517950@xxxxxxxxxxxxxxxxxx>]

[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1517950

Title:
  Kubuntu Freezes / Crashes on Suspend to RAM

Status in xorg package in Ubuntu:
  Expired

Bug description:
  Hardware is Lenovo Yoga 2 13.3 convertible. Unfortunately, I have two
  problems with suspend-to-RAM on Kubuntu 15.10.

  * Problem one is already reported in bug report 1418295: Sometimes,
  the screen freezes on resume. This seems to happen more often, when I
  happen to touch the touchscreen in the seconds of resume. As this is
  already a confirmed bug, no more info to it here.

  * Problem two - and the more serious problem - is, that the whole
  system freezes at the time of suspend-to-RAM, when it has been running
  for more than two hours since boot or last resume. So, if I remember
  to interrupt my work at least every two hours, press the power button
  (which I have set to perform suspend-to-RAM), and then immediately
  wake up the system again, I am fine. But if the system has run for
  more than two hours, and I then do the suspend-to-RAM, it freezes
  before the suspend: The screen turns black as it ought to in suspend-
  to-RAM, but the power does not go off and the CPU fan keeps running.
  Input is no longer possible. In this state, the only thing, that I can
  do, is a hard power-off: Press the power-button for over 5 seconds.

  This problem is very annoying.

  I've had this problem since original install with Kubuntu 15.04. An
  install to Kubuntu 15.10 in the last weeks didn't solve it.

  I tried to report this bug also with ubuntu-bug, but it ended with a
  segfault, after it displayed the aggregated data.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Nov 19 16:04:34 2015
  InstallationDate: Installed on 2015-07-06 (135 days ago)
  InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to wily on 2015-10-18 (31 days ago)

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