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I've tried everything I could think of to the point of having to reinstall Ubuntu and try all over again.

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Citing the answer of @Matt: Have you reviewed [Ubuntu's How to][1] to be able to modify ATI drivers? When I was reading how to install my ATI workstation I also ran across [this discussion ][2] about ATI video drivers. [1]: [2]:… – Volker Siegel Aug 29 '14 at 12:01

Perhaps you can give a try to the latest 13.1 Catalyst driver, now officially supporting Ubuntu 12.10. I tried it today with my 7750 without success, so any feedback appreciated

[Edit] I finally managed to have my 7750 Ati work successfully with Ubuntu 12.10 and the latest 13.1 Catalyst driver

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I have Ubuntu 12.10 64-bit and I tried this for several times using different suggestions, but no luck! Can you please list what you have done step by step to get this working? – Sadi Mar 21 '13 at 10:53

I have that video card too and I went to the software updater went onto settings and drivers and I downloaded a bad driver and in the end I think I went with the proprietary driver (update) because this one has the best performance... Weather this works on 12.10 or not I'm not sure, I did this on 13.04 so if you cannot solve it then I suggest installing 13.04.

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Welcome to AskUbuntu. Could you provide some kind of reference to that proprietary driver? Without it your answer doesn't help that much. – Luís de Sousa Jan 13 '14 at 15:25

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