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BIOS issue on Latitude E6520
Had a video issue with my Latitude E6520. After doing some research online, went into BIOS and turned on the Optimus option in the Video section. Now, when the system is powered on, I get a blank screen. Any way to revert that change?
it4669
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July 1st, 2014 12:00
Fixed the issue. Found that if you have an external display connected to the computer, it won't be used unless you close the laptop. I also connected a USB keyboard so I was able to go in and turn off Optimus. Rebooted and it worked! Hope this helps someone else out in the future.