My HP laptop doesn't respond

Hello,
Earlier, I was playing some assassin's creed 3 and when i tried to alt tab, the laptop crashed. When i tried to reboot, the laptop turned on and the display seemed to work, but I could not make it out as I had shattered it and rely on an external monitor. The laptop does not seem to send a signal to the monitor. I tried entering the bios and I could. But when I entered, it was on the broken integrated display and beeped 6 quick times. Other than when im in the bios, the laptop doesn't seem to respond to anything. I've tried various methods online and nothing seem to work. Is there anything that I can do? Or is this an unfixable issue? Thank you in advance