I bought a Acer K501N with a 15.6" HD/LED display and it has a nvidia Geforce G102M video card. I have installed the Ubuntu very easily. But after booting, the screen gets divided into six parts which is identical. My mouse moves in all the copies on the screen. This is very frustrating for anybody. Please help me to fix this Bug. I am not able to guess any idea behind this issue.
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