Screen blink twice every 10 seconds on ubuntu 12.04

Posted by Erik on Ask Ubuntu See other posts from Ask Ubuntu or by Erik
Published on 2012-08-27T17:30:15Z Indexed on 2012/08/28 3:52 UTC
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12.04

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screen

On 12.04 64-bit, about every 5 seconds my screen blinks twice. Even during installation of Ubuntu from CD, this happens during the complete process.

I had no problems with earlier Ubuntu versions (earlier version was 10.04LTS 64-bit)

System specs:

I7-2600K
MSI 7681 Motherboard
16 GB RAM
2 x Nvidia 560 card SLI (only 1 screen on 1 card active during install process)

This flickering is driving me crazy, please help.

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