Ubuntu – Graphics drivers for Intel Nuc (DE3815TYKE)

Take an example for 12.04 amd64 arch. I recommend 12.04 LTS instead of 13.04. 12.04 are more stable than 13.04 and will get supports until 2017. Some PPA like ppa:ubuntu-x-swat/x-updates and ppa:ubuntu-x-swat/intel-graphics-updates do not offer to 13.04 now.

Do NOT take care of "additional drivers" for graphics card from ubuntu software center.

You first need to set graphics cards to 'switchable' in bios, if there has the setting item . If there no, do not care.

For your notebook , you should use bumblebee:

sudo add-apt-repository ppa:bumblebee/stable
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install bumblebee bumblebee-nvidia primus-libs-ia32
Ref: https://wiki.ubuntu.com/Bumblebee#Installation

Then If you want to run application with Nvidia Graphics Card, you only need to run 'optirun xxx' in gnome-terminal.

You can also make use of HD4000 for mplayer:

sudo apt-get install i965-va-driver
sudo add-apt-repository ppa:sander-vangrieken/vaapi
sudo apt-get update
sudo apt-get install mplayer-vaapi
Last, change video output driver to `vaapi` in `Gnome Mplayer` or `VLC` config.
Ref: http://www.webupd8.org/2012/11/install-mplayer-with-va-api-hardware.html

In order for ubuntu to know your intel graphic card in 'System Settings'-> 'Details', you need to run:

sudo apt-get install mesa-utils

You can also try intel SNA (the new 2D acceleration technology for the Intel graphics driver):

sudo add-apt-repository ppa:ubuntu-x-swat/intel-graphics-updates
sudo apt-get update
sudo apt-get dist-upgrade
sudo mkdir /etc/X11/xorg.conf.d/
echo -e 'Section "Device"\n Identifier "Card0"\n Driver "Intel"\n Option "AccelMethod" "sna"\nEndSection' | sudo tee /etc/X11/xorg.conf.d/20-intel.conf
Then restart machine.
Ref: http://askubuntu.com/questions/298145/xserver-xorg-video-intel-in-ppaubuntu-x-swat-x-updates
Ref: http://askubuntu.com/questions/225356/how-can-i-enable-the-sna-acceleration-method-for-intel-cards-under-ubuntu-12-04
Ref: http://www.phoronix.com/scan.php?page=news_item&px=MTExNjA
Ref: http://www.phoronix.com/scan.php?page=article&item=intel_ivy_glamor&num=1

Here is how I uninstalled the latest Intel Graphics Driver :

Open a new Terminal (CTRL+Alt+T) and execute

gksudo gedit /etc/apt/preferences.d/intel-removal

Paste this code in the File and save it

Package: *
Pin: release a=trusty*
Pin-Priority: 1001
Package: *
Pin: origin download.01.org
Pin-Priority: -100

Run

sudo apt-get dist-upgrade

You will be asked to downgrade about 20 packages and that's what you want.

Just some cleaning up to do:

sudo rm /etc/apt/preferences.d/intel-removal

sudo rm /etc/apt/sources.list.d/intellinuxgraphics.list*

sudo apt-get update

Now you must delete the actual drivers :

sudo apt-get purge i915-3.15-3.13-dkms intel-linux-graphics-installer

Finally reboot