Intel Graphics Installer
Intel Graphics Installer is a small tool but this updates your graphics easily. Earlier I was using it on Ubuntu 14.04 (I guess) but then when I turned to 14.10 then there was not any support for 14.10. So I missed this tool a lot. After Ubuntu 15.04 release, I updated from 14.10 and found for a long time that there is not support for Vivid also 🙁 . But finally there is support for Vivid Vervet. I’m happy now:). It is very easy to install and use Intel graphics installer in Vivid Vervet.
How To Install Intel Graphic Installer In Ubuntu 15.04 Vivid Vervet