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I have a weird problem with my Ubuntu 12.04 dual screen setup (Toshiba laptop + one monitor).

After a while the cursor on one screen completely changes its shape (not every time). I don't really know how to describe it because it's always something else. Sometimes I get four or five vertical lines instead of a cursor, sometimes I can only see part of the cursor, etc, sometimes weird shade appears.

This only happens on one screen simultaneously. If I go to the other screen, the cursor appears to be fine but when I change screens, the cursor changes. I tried to do a screenshot but when I do, the cursor looks just fine.

I'm using Unity and Gnome 3 but the problem is on both desktop environments. Nothing is wrong with my screen though because I'm also using Windows and I don't have any problems there.

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Yes, I'm using ATI graphics. I forgot to mention –  mantic0 Sep 6 '12 at 12:32
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up vote 0 down vote accepted

This is a common problem with ATI graphics (you didn't mention your graphics but I am assuming you have ATI graphics because of this).

As far as I know there is currently no solution to this problem. Don't worry though because it is harmless.

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