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[Bug 1515711] Re: lightdm hangs, windows freeze, lightdm restart helps most of the times.


Downgrading solved part of the issue. Android Studio manages to keep one
CPU busy for 100% for up to five minutes, during which tme other
programs stop responding too. But then, when AS stops using that CPU,
all is back to normal. For fifteen minutes or so. I don't think Android
Studio should be capable of hanging up my UI by using just one CPU.

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  lightdm hangs, windows freeze, lightdm restart helps most of the

Status in lightdm package in Ubuntu:

Bug description:
  Since a few days, when I use Android Studio, my screens freeze.
  Nothing works. With alt-crtrl-F2 I log in to a shell window, restart
  lightdm, then it works. Except on the last freeze, now I had to
  restart the computer. When restarting lightdm, a popup said "system in
  low graphics res, cannot detect your settings".

  I have reported the but to Android Studio developers. But a program,
  even a big one like an IDE, should not be able to crash my computer.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: lightdm 1.14.2-0ubuntu1.1
  ProcVersionSignature: Ubuntu 3.19.0-33.38-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-33-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.17.2-0ubuntu1.7
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Nov 12 18:22:33 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-10-02 (41 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  SourcePackage: lightdm
  UpgradeStatus: No upgrade log present (probably fresh install)

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