[Bug 1741874] Re: if I move the arrow to the Unity, all the unity disappear , only the background still appear , and all the action freezed

[Chris Perry]

The bug report that is being worked on is #1741447.

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https://bugs.launchpad.net/bugs/1741874

Title:
  if I move the arrow to the Unity, all the unity disappear ,only the
  background still appear ,and all the action freezed

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  My OS is Ubuntu 16.04 lts,and I upgrader last week (2018/01/07),and
  whe I restart my computer,if I move the mouse arrow to the lift Unity
  ,the OS will freeze,all the icon disappear,it keeps for one minutes,if
  the arrow touch the Unity again ,as the same issue would happen ,so I
  cant touch the Unity, now I use the cairo-dock and terminal to control
  my Ubuntu.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.23
  ProcVersionSignature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17
  Uname: Linux 4.10.0-38-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Mon Jan  8 18:16:32 2018
  InstallationDate: Installed on 2017-09-19 (110 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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