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So recently i installed Ubuntu 11.10 and first thing i always do is checking additional drivers but nothing shows there , and when i go to "System Info" > "Graphic" there is "Driver:Unknown Experience:Standard" , but experience is not even close to standard. I know that AMD have bad driver support for Linux based OS but i am experiencing some bad situations like: "blank screen" (neither unity launch bar or upper taskbar or whatever is showing up, and i can't do nothing about it, neither reset or start up system monitor.) this is very annoying to me and its causing few more problems, it sometimes seems like "Ubuntu is lagging". So if you know how to fix that stuff please tell me. Thank you.

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BAD support? they HAD bad support like 3 years ago they are doing better much better now!, most likely your card is not supported by the AMD driver anymore so use the open source ones. instead – Uri Herrera Oct 21 '11 at 16:55
Have you tried 'sudo apt-get install fglrx' in the terminal then rebooting? – Dan Oct 21 '11 at 17:09
In the Additional Drivers window - what drivers (if any) are offered to you? – fossfreedom Oct 21 '11 at 17:13
Additional Drivers don't show anything... :/ – Ivan Tomica Oct 21 '11 at 17:15
in fact i did't, i will try that now and then give you feedback. – Ivan Tomica Oct 21 '11 at 17:15
up vote 2 down vote accepted

In the dash.. when you type AMD do you see the the AMD Catalyst Control Center (Administrative)? If 'yes' login and click on 'Display Options' and 'Tear Free'. You want to disable 'Tear Free'.

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If you want to try open source Radeon driver check here

As well as this thread

Hope it helps.

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