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I installed 12.04 LTS a few days ago and have encountered this problem with the screen.

First: When I shifted between windows or I moved up and down through a website(s), the screen seemed to have like stripes, and for two or three seconds or so it doesn't work.

Second: The other day I succeed in fixing it, but only when I'm using the battery. Whenever I plug the charger in, the problem appears again. It happens when I take out the battery and plug the charger in, and also when I've been using the battery, and I plug the charger in.

I don't really know what to do.

My Laptop specifications are:

  • Toshiba Satellite L850 - 150
  • AMD Radeon HD 7670M Graphics Gard

Any help will be to assistance, to try and work out my problem.

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Does this happen with other operating systems? –  LnxSlck Aug 25 '12 at 21:03
No, it olny happens whit ubuntu 12.04. When I'm using Windows 7 I have no problem –  David Aug 26 '12 at 8:52
Same for me , asus k52f –  BigSack Aug 26 '12 at 13:58
Althoug it might seem strange, I've solved it by installing gnome 3. Since I installed it I've had no problem. –  David Aug 27 '12 at 8:45
Maybe some dependency package of Gnome solves the issue. –  LnxSlck Aug 27 '12 at 9:09
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