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I own a Dell Vostro 3550 laptop which uses both Windows 7 and Ubuntu. The laptop broke a month ago and I called Dell support to fix it. A small metallic clip was dislodged from the back lid and short-circuited "something" on the motherboard. I wasn't present during repair so I do not know exactly what was roasted.
After repair everything works fine on Windows 7 but on Ubuntu the mouse cursor and the windows environment are flickering. Sometimes it stops for an hour or so but it reoccurs.
I've tried a fresh install of Ubuntu along with Fedora and Funduntu but flickering is still present. My intuition says that its a hardware issue since I've never had flickering problems in Ubuntu(currently run the 12.04 vostro 3550 distro), although I kind of spended a lot of time in order to setup Vostro 3550 graphics to work properly.
I want to investigate more before calling Dell support again because Windows 7 works flawlessly and it might be a drivers problem(although I've tried almost everything regarding ati drivers for ubuntu, disabled discrete card, disable integrated card etc.)
The graphics card are AMD Radeon 6630M and Intel HD 3000.
Any ideas on how to fix that problem?