i am new to ubuntu
few days ago i downloaded ati driver 12.2 from "amd website" , and installed it . but after reboot this message shows up : "ubuntu runs in low-graphic mode ... "
so i fix it with great effort (via recovery mode) , after that i used "Additionals Drivers" in "system setting" to install ati driver ! but it didnt work again !
i have no idea what to do now!
my graphic is: ati radeon mobility 4550