sudo apt-get install gnome-session-flashback
sudo apt-get install gdm
sudo apt-get remove unity
sudo apt-get remove lightdm
sudo apt-get remove ubuntu-desktop
------------------------------------------------------------
http://www.tecmint.com/remove-unity-install-cinnamon-mate-desktop-in-ubuntu/

sudo add-apt-repository ppa:ubuntu-mate-dev/xenial-mate
sudo apt-get update
sudo apt-get install mate-desktop-environment
sudo apt-get install mate-dock-applet
sudo apt-get install mate-desktop-environment-extra
------------------------------------------------------------

tar zxvf Xilinx_Vivado_SDK_2015.1_0428_1.tar.gz

Get into the extraction directory (usually Xilinx_Vivado_SDK_2015.1_0428_1), 
run xsetup with root previlidge.

sudo ./xsetup
sudo chown -R vlx:vlx .Xilinx


sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386
sudo apt-get install libgtk2.0-0:i386 dpkg-dev:i386
sudo apt-get install libsm6:i386

sudo ln -s /usr/bin/make /usr/bin/gmake


• The version of the toolchain can be displayed by running the command:
arm-linux-gnueabihf-g++ -v 

• The last line of the output printed in the shell window should be GCC version 4.9.2
20140904 (prerelease)(crosstool-NG linaro-1.13.1-4.9-2014.09 - Linaro GCC 4.9-2014.09).

To set up the environment to run SDx, source the file below so that sdx command is in the PATH:
Add to .bashrc:

source /opt/Xilinx/Vivado/2016.4/settings64.sh
source /opt/Xilinx/SDK/2016.4/settings64.sh	
export LC_TIME=en_US.UTF-8
export LC_MONETARY=en_US.UTF-8
export LC_PAPER=en_US.UTF-8
export LC_NAME=en_US.UTF-8
export LC_ADDRESS=en_US.UTF-8
export LC_TELEPHONE=en_US.UTF-8
export LC_MEASUREMENT=en_US.UTF-8
export LC_IDENTIFICATION=en_US.UTF-8
export LC_NUMERIC=en_US.UTF-8
export SWT_GTK3=0

---------------- check dependencies --------------------
file /opt/Xilinx/DocNav/docnav
ldd /opt/Xilinx/DocNav/docnav

cd /opt/Xilinx/Vivado/2016.4/lib/lnx64.o/
sudo mv libstdc++.so.6 libstdc++.so.6-orig
sudo mv libstdc++.so.6.0.8 libstdc++.so.6.0.8-orig
sudo ln -s /usr/lib64/libstdc++.so.6 libstdc++.so.6
sudo ln -s libstdc++.so libstdc++.so.6
sudo ln -s libstdc++.so libstdc++.so.6.0.8

cd /opt/Xilinx/SDK/2016.4/lib/lnx64.o
sudo mv libstdc++.so.6 libstdc++.so.6-orig
mv libstdc++.so.6 libstdc++.so.6-orig
mv libstdc++.so.6.0.8 libstdc++.so.6.0.8-orig
sudo ln -s /usr/lib64/libstdc++.so.6 libstdc++.so.6
ln -s libstdc++.so libstdc++.so.6
ln -s libstdc++.so libstdc++.so.6.0.8

--------------- USB cable drivers ------------------------
1. Disconnect cable

cd /opt/Xilinx/Vivado/2016.4/data/xicom/cable_drivers/lin64/install_script/install_drivers
sudo ./install_drivers

----------------- Java SDK -------------------------------
sudo apt-get install openjdk-8-jre
sudo update-alternatives --config java   (if more than one)

check:
/opt/Xilinx/SDK/2016.4/eclipse/lnx64.o/eclipse.ini
/opt/Xilinx/Vivado_HLS/2016.4/lnx64/tools/eclipse/eclipse.ini
/opt/Xilinx/Vivado_HLS/2016.4/lnx64/tools/eclipse/eclipse.ini.orig



If using KDE
unset QT_PLUGIN_PATH

mate-tweak

SDK lanch:
export SWT_GTK3=0 
xsdk