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

[chobi cuh]

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)

[Chris Perry (clissold345)]

Duplicate, see bugs 1741502 and 1741771, and I think there's at least one other. Hopefully someone will fix this problem very soon?

[Chris Perry (clissold345)]

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

[Timo Aaltonen (tjaalton)]

please run apport-collect 1741874

[Timo Aaltonen (tjaalton)]

no need, marking as a duplicate