Having trouble changing the brightness settings for the backlight on my lenovo y500 with a gt650m gpu.
So I followed this guide here,
I followed the instructions to the T. I can only change my brightness to a medium level and then it locks there. I'm totally new to ubuntu. I have tried all the fixes I've found on google to avail. Please somebody help me. I was happy to at least get it down from an eye blinding level but I still want more control. Thanks for the input.