Today, I helped a student solve the problem of installing the Ubuntu graphics card driver that he had been struggling with for a long time. His video card was ati5650. He had reinstalled Ubuntu many times, not only 10.04, but also 10.10. After a video card is installed, it is a black screen.
After reading the online materials, we learned that you must change the mode of the video card in the BIOS to not be switched, that is, the dedicated display. It turns out that his computer is a dual-graphics card, so there are a lot of problems.
(1) Go to BIOS (F2)-> switch switchable to another mode in the options below main, save and exit (F12), and go to Ubuntu.
(2) Use [system]-> [System Management]-> [additional driver]. Install, wait ....
(3), okay, restart ..
(4) Now you can set 3D effects (compiz ). Pai_^
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