Well i finally decided to upgrade from 10.10 ,so i did the upgrade from the update manager and i think somehow it go corrupted and i could not use my full key board .So i downloaded it from my main pc and did a fresh install .everything works awesome except...the backlight the FN keys are working but its still a dim screen unless im plugged in to outlet. can someone please walk me through on how to set the back light levels? im a total computer noob. thank you
I get the same issue with my machine. Ironically, logging in, and then out again fixes it. The brightness keys now work. No idea at all why.