Install Updated and Optimized Open Graphics Drivers (radeon, intel and nvidia) on Ubuntu 15.04/14.04

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This PPA provides updated X (2D) and mesa (3D) free graphics drivers for radeon, intel and nvidia hardware. Updates packages provide:

* OpenGL 4.1+ support and new OpenGL extensions: http://mesamatrix.net

* packages built against llvm-3.6

* gallium-nine support installed by default. Read the specific section below

* VDPAU, OpenMAX IL Bellagio, VAAPI and XvMC Gallium3D accelerated video drivers

* OpenCL support (mesa-opencl-icd package), including updated libclc

* r600 LLVM compiler, enabled with R600_DEBUG=llvm env var

* optional GLAMOR acceleration on radeon (>= r300), and nouveau drivers

* i915 gallium driver replaces by default i915 classic driver

* experimental intel ilo gallium driver

=== Using accelerated video ===

Supported VDPAU drivers: r300, r600, radeonsi, nouveau
Supported OpenMAX IL Bellagio drivers: r600, radeonsi
Supported VAAPI drivers: r600, radeonsi
Supported XvMC drivers: r600, nouveau

* First you need to install mesa-vdpau-drivers package:

sudo apt-get install mesa-vdpau-drivers

* Then to test the VDPAU driver with mpv use:

$ mpv --hwdec=vdpau yourvideofile

* To test the XvMC (e.g.) r600 driver edit the file /etc/X11/XvMCConfig and insert:

/usr/lib/dri/libXvMCr600.so

and restart the X server. Then to test it with mplayer:

mplayer -vo xvmc yourvideofile

=== Using alternative drivers ===

To use experimental ilo (intel) gallium driver add this in /etc/X11/xorg.conf:

Section "Device"
Identifier "Device0"
Driver "Intel"
Option "DRI" "ilo"
EndSection

To run your OpenGL program (in this case glxgears -info) with non default drivers:

* classic i915 driver:

$ LIBGL_DRIVERS_PATH=/usr/lib/dri-alternates glxgears -info

* gallium llvmpipe software render:

$ LIBGL_ALWAYS_SOFTWARE=1 glxgears -info

* old non-gallium software render:

$ LIBGL_ALWAYS_SOFTWARE=1 LIBGL_DRIVERS_PATH=/usr/lib/dri-alternates glxgears -info

Install Updated and Optimized Open Graphics Drivers

I am showing one example and you can check here the packages list.

Open the terminal and run the following commands

sudo add-apt-repository ppa:oibaf/graphics-drivers

sudo apt-get update

sudo apt-get install xserver-xorg-video-intel

If you want to uninstall the PPA run the following commands from your terminal

sudo apt-get install ppa-purge

sudo ppa-purge ppa:oibaf/graphics-drivers

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