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I have installed Ubuntu 11.10 64x beside Windows 7.

When I start the computer, I have to choose between the operating systems, but when I choose Ubuntu, the display is black, only the cursor is visible. I am able to log in, and I can hear the sound, but the display is black. but when I start Ubuntu in recovery mode, and I choose "normal start" it works.

I have installed Ubuntu again, but I have the same problem. I know, that the driver for my ATI Radeon are not installed. When I want to update them it works, but when I restart they are gone.

Please help me

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1 Answer 1

I have already found the problem. i switched "switchable" to "descrete" at the graphic mod in bios.

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Great, please mark your question as answered by clicking the green check mark next to the answer. –  Bruno Pereira Feb 19 '12 at 8:17

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