Is your laptop plugged into the charger? I don't think you said if it was or not. Maybe try unplugging everything, removing the battery for a minute or two, then put the battery back in and plug in the charger. Also try connecting a monitor if you have one and see if anything changes. Do you have the manual for your laptop? If so, look up how to do a BIOS reset (may also be called a CMOS reset).