After authentication programs do not execute. Ubuntu 17.10

Asked by Gregor Sotlar

If I run gksudo nautilus from Terminal it opens the window in which I can't type. If I try to type it stills types in Terminal that is running in the background. I tried to click on the window and it doesn't work. I tried to switch program in background with alt-tab and then I can write in Authentication window, but after entering a password, it does nothing. Nautilus doesn't execute, nothing happens.
Similar problem if I open .txt file as Administrator. After authentication, it doesn't execute.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: ubuntu-release-upgrader-core 1:17.10.8
ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
Uname: Linux 4.13.0-19-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 9 09:48:21 2017
InstallationDate: Installed on 2017-01-11 (331 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to artful on 2017-12-09 (0 days ago)
VarLogDistupgradeTermlog:

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Brian Murray (brian-murray) said :
#1

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We understand the difficulties you are facing, but it is better to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. You can also find help posting your problem in the support forum of your local Ubuntu's community http://loco.ubuntu.com/ or asking at http://askubuntu.com. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs.

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Launchpad Janitor (janitor) said :
#2

This question was expired because it remained in the 'Open' state without activity for the last 15 days.