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[ubuntu] black lines in top of the screen

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linux-howto

http://ubuntuforums.org – I have a weird problem. There are around 16 little black horizontal lines on the top of my screen. They are also constantly flashing.. I just freshly installed ubuntu 12.10 x64 next to my win8x64 install. Hardware: Gigabyte GA-Z68X-UD3H-B3 (rev. 1.3) AMD radeon hd 6950 Dell UltraSharp U2312HM I installed the latest stable AMD drivers via this method All bios's/firmwares are up-to-date. And I also installed all ubuntu12.10 updates.. This is most likely a driver problem. Or maybe its my screen, the dell screen is also connected by a USB. I know in windows I installed (Hardware)