Comment 47 for bug 1247189

Hi People,
Iḿ using 14.04 and experienced this bug on first try to switch users.

FRESH install of 14.04.
My user as computer admin, my wife as normal user, another 3 users (nerver logged in)

steps:
1. Boot
2 . Logged in with first user
3. Upper rigth "gear" icon -> sithch user
4. Desktop shows screen with all users, but frezzes completely

-> not able to ctrl-alt-Fn to any tty
-> If previosly openned a TTY not able to switch back

The only UI custom sets where enable local menus , language settings portuguese,, enable directory sort on nautilus and set wallpaper.

===== SETUP PACKAGES ==========
After fresh install:
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install geany geany-plugins vim zim nmon
--
sudo apt-get install gimp gimp-data gimp-data-extras gimp-plugin-registry graphviz gnuplot feedgnuplot gnuplot-doc libgnuplot-iostream-dev python-gnuplot graphviz-doc icu-doc
fontforge fontforge-extras icontool imagemagick inkscape
sudo apt-get install vlc zim unity-tweak-tool mplayer smplayer
sudoo apt-get install gstreamer0.10-plugins-ugly libxine1-ffmpeg gxine mencoder libdvdread4 totem-mozilla icedax tagtool easytag id3tool lame nautilus-script-audio-convert libmad0 mpg321 libavcodec-extra
l ubuntu-restricted-extras
sudo /usr/share/doc/libdvdread4/install-css.sh
----
sudo apt-get install clamav clamtk
--
#### Java
sudo apt-get install openjdk-7-jdk openjdk-7-jre icedtea-7-plugin
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java7-installer
sudo apt-get install oracle-java6-installer
---
sudo apt-get install skype
sudo apt-get install filezilla filezilla-common
sudo apt-get install unace rar unrar p7zip-rar p7zip zip unzip sharutils uudeview mpack arj cabextract file-roller
---
sudo apt-get install darktable digikam

#### Chrome
wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
sudo sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
sudo apt-get update
sudo apt-get install google-chrome-stable
----
sudo apt-get install activity-log-manager activity-log-manager-control-center
sudo apt-get install gufw
--
#### NETFLIX
sudo apt-add-repository ppa:ehoover/compholio;
sudo apt-get update ;
sudo apt-get install netflix-desktop redbox-desktop lovefilm-desktop;
--
#### Virtualbox
sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib" >> /etc/apt/sources.list'
sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib" >> /etc/apt/sources.list'
wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
sudo apt-get update & sudo apt-get install virtualbox
---
sudo apt-get install flashplugin-installer
sudo apt-get install nmon
sudo apt-get install unity-tweak-tool
sudo apt-get install gnome-tweak-tool
--
#### Dropbox
sudo apt-get install nautilus-dropbox
sudo apt-get install libappindicator1
---
#### Pipelight
sudo apt-add-repository ppa:pipelight/stable
sudo apt-get update
sudo apt-get install pipelight-multi
sudo pipelight-plugin --enable silverlight
sudo pipelight-plugin --enable widevine
----
sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp tlp-rdw
sudo tlp start
---
Setting Nautilus preferences...'
    gsettings set org.gnome.nautilus.preferences sort-directories-first true
--
sudo apt-get install svn git bzr nodejs python3-distutils-extra glade
sudo apt-get install openssh-server
--
sudo apt-get install mysql-server
sudo apt-get install libqt4-sql-mysql

=== Istall Brasil IRS Anual Report java software.

sudo apt-get -f install
sudo apt-get autoremove
sudo apt-get -y autoclean
sudo apt-get -y clean
================ INSTALL STEPS =======

After this I setup digikam with mysql and HP PSC-1510C printer.

Except java app, hplip nmon, digikam, mysql, zim, zip chrome, firefox and libreoffice I not used any of the other softwares installerd , yet.

On Software & Updates -> Additional drivers -> nothing was change since install
No pproprietary drivers in use
Using X.Org Server - Noveau display driver from xserver-xorg-video-noveau.

Please guide me how to select/extract any other logs that might help.