Intel HD4600 Integrated Graphics

Support for Ubuntu 12.04 LTS has ended over at the Intel Open Source Technology Center. There repo is still active so grab the drivers whilst they are still up!

sudo sh -c 'echo "deb https://download.01.org/gfx/ubuntu/12.04/main Ubuntu 12.04" >> /etc/apt/sources.list'

sudo apt-get update

sudo apt-get install intel-linux-graphics-installer

After upgrading to Ubuntu 13.x LTS the new repo can be used

echo "deb https://download.01.org/gfx/ubuntu/13.10/main saucy main #Intel Graphics drivers" | sudo tee /etc/apt/sources.list.d/intellinuxgraphics.list

echo "deb https://download.01.org/gfx/ubuntu/13.04/main Ubuntu 13.04 #Intel Graphics drivers" | sudo tee /etc/apt/sources.list.d/intellinuxgraphics.list

wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg -O - | sudo apt-key add -
wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-2 -O - | sudo apt-key add -
sudo apt-get update

After upgrading to Ubuntu 14.04 LTS the new packages can be used

# Add the packages signatures to apt;

wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg -O - | \
sudo apt-key add -

wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-2 -O - | \
sudo apt-key add -

# x86
https://download.01.org/gfx/ubuntu/14.04/main/pool/main/i/intel-linux-graphics-installer/intel-linux-graphics-installer_1.0.5-0intel1_i386.deb

# x64
https://download.01.org/gfx/ubuntu/14.04/main/pool/main/i/intel-linux-graphics-installer/intel-linux-graphics-installer_1.0.5-0intel1_amd64.deb