Screen Brightness Keeps Dimming

My new Sony SVS131290X laptop will not keep it's screen brightness lit.  It keeps dimming by itself.  I have tried setting the function + F6 key, going to power options and adjusting the brightness there, and also tried advanced power options.  It dims after 30 seconds.  Has anyone else had this problem?

Hi everyone, I just recently purchased a Sony Vaio Pro 11" and I have been struggling with this issue the past 2 days, and now I have a proposed solution! Prior to doing this I had tried two things (outlined below) and neither of them fixed the issue for me, so if you are in the same boat this might work for you too. WHAT WORKED for me was going to the graphics properties control panel:Right click on the Desktop home screen and select "Graphics Properties" > click the "Power" tab > click "On Battery" > and under "Display Power Saving Technology" click OFF That fixed all my auto-brightness adjusting woes. Hopefully this helps someone else  The two steps I took that didn't quite work:1. Went to Vaio Control Center > Image Quality > turned OFF the auto brightness = still had the dimming issue2. Went to the Start screen, scrolled down to the apps section and in the search bar > typed services.msc > opened up Services > clicked "Sensor Monitoring Services" > went to the drop down menu and changed from "manual" to "disabled" and restarted my laptop = still had dimming issue  

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