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The screen flickering all began a few weeks after installing Ubuntu 13.10, and (unrelated to this specific problem) the laptop wouldn't upgrade to 14.04 through the usual way. Recently, though, I decided to try installing Ubuntu 14.04 by first downloading the ISO and setting it up on a flash drive. The installation went well and I was very glad to see that the shaking/flickering of the screen had gone away. Now, though, just 3 days after the fresh installation, the flickering has returned. I'm assuming that it is a driver issue or Ubuntu bug, considering that it was temporarily fixed with a fresh install.

What could be causing this issue? How can I fix it? I'm having a very difficult time researching for drivers that might correct this.

  • Lenovo IdeaPad N580
  • Intel Pentium B690
  • Intel Sandy Bridge Graphics (drivers needed?)
  • 64-Bit Ubuntu (replaced 64-bit Windows 8)

I've found some old posts about Sandy Bridge compatibility issues with previous versions of Ubuntu in the past couple of years, but nothing specific to screen shaking/flickering.

Check it out and let me know if it's easy to fix:

Flickering

The entire screen does this, but I zoomed into a corner to make it easier to see. Sometimes, it shakes up and down more rapidly, making it very difficult to use the laptop. The shaking usually slows down after a couple of hours of continued use, but goes rapid again after the screen goes to sleep and is woken up.

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Thanks for the edit, No Time, to embed the image. –  Troy Greer Aug 29 at 0:30
    
Does anybody have a similar issue or solution to it? –  Troy Greer Aug 29 at 0:30

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