first of all thank you for your help! My laptop specifications:
HP-ProBook core i 4 GB RAM Intel 4000 HD + AMD Catalyst HD (the new version)
I installed my ATI drivers by using additional drivers, but the result was zero fan, and the processor is still working very bad. I disabled my Ati, working on Intel, but when I check system details, Intel is still unknown. I would like to know if I can install my Intel+AMD drivers. I would like to enjoy OpenGL+ GTK.
Note : I can't determine anything about my Ati card, but I only know that it is 2 GB. My distro is Ubuntu 12.04 LTS