Again, a little bit more precise description! Icons of the desktop like filemanager etc. disappear while touching, so the desktop doesn't work. As well a shutdown via the shutdown button on the right side of the GUI is not possible. It always returns to the screen wirh the disappearing desktop icons

[Horst Ey]

The notifications of the error protocol:

/usr/bin/compiz

The following package is mentioned:

package
compiz-core 1:0.9.12.2+16.04.20160823-Oubuntu1

Problem Type
Crash

Title
compiz crashed with SIGSEGV

Apport Version
2.20.1-Oubuntu 2.15

Architecture
i386

compiz-plugins

No value set for ‚/apps/compiz-1/general/screen0/options/active-plugins

Compositor Running
compiz

Compositor Unredirected Driver Blacklist

Ubuntu TLS 16.04 latest version 13. . . .

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.23
ProcVersionSignature: Ubuntu 4.13.0-26.29~16.04.2-generic 4.13.13
Uname: Linux 4.13.0-26-generic i686
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: i386
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Sat Jan 13 15:11:20 2018
InstallationDate: Installed on 2017-11-30 (43 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release i386 (20170801)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
VarLogDistupgradeAptHistorylog:
 Start-Date: 2018-01-11 14:49:12
 End-Date: 2018-01-11 14:49:12
VarLogDistupgradeApttermlog:
 Log started: 2018-01-11 14:49:12
 Log ended: 2018-01-11 14:49:12

[Horst Ey (horstlot)]

It is not possible for our group of my students to work normally with our system.
We an only work after recovering the system.
So, I would appreciate it very much, if you would help us as soon as possible with a working upgrade.

Prof. Dr Ey