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Lock screen flickering Acer Aspire E5-511

I got my new Acer Aspire E5-511-P2AV and installed Ubuntu 14.04. When I lock the screen the screen begins to flicker. Every 2-3 seconds the brightness goes up very shortly and then it's black again. ...
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968 views

screen flickers after waking from blank screen

Every time I lock my screen and then unlock it again I get a really annoying screen flicker that stays until the next reboot. It's not like a graphic glitch it's like the screen is refreshing at a ...