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I just install Ubuntu 13.04 on my PC. When start Ubuntu, the display is out of phase, I have a black bar in the middle of display (is divided for this black bar). I suspend my PC and then try to resume it, and fixed it.

Any idea about this?

Thanks!

UPDATE: I found the solution in this post: http://askubuntu.com/a/244623/165897

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Which graphic card and drivers do you have? –  Leo Jun 9 '13 at 20:42
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