"Search your computer" becomes inoperative 16.04 LTS

[Martti]

Hi there,

The button "Search your computer" goes dead randomly.
It will do nothing when clicked.

It will stay dead, but might come back again after an hour or so.

This was working fine on 14.04 LTS, but upgrade to 16.04 LTS and clean install of 16.04 LTS randomly kills this button/feature.

I have to use terminal to start programs that are not on the unity bar.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.16
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Mon Sep 12 05:48:27 2016
InstallationDate: Installed on 2016-09-05 (6 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)