Ubuntu 14.04 trusty

disable non needed packages

sudo apt-get remove modemmanager
echo manual > /etc/init/whoopsie.override

non free

sudo apt-get install ubuntu-restricted-extras
sudo apt-get install linux-firmware-nonfree

utils

sudo apt-get install unity-tweak-tool
sudo apt-get install indicator-multiload

disable atime ext4 in /etc/fstab

UUID=226d60a2-a8ec-489f-b3fe-c1595b5ac7eb /               ext4    errors=remount-ro,noatime 0       1

sudo apt-get dist-upgrade
sudo apt-get install --install-recommends linux-generic-lts-utopic xserver-xorg-lts-utopic \
 libgl1-mesa-glx-lts-utopic libegl1-mesa-drivers-lts-utopic

Install steam dependancy

apt-get install libgl1-mesa-dri-lts-utopic:i386 libgl1-mesa-glx-lts-utopic:i386