Chosen Solution

How do I re establish signal to screen from processor upon boot up

Follow this guide up to step five: Acer Aspire 5100 LCD Monitor Replacement Just unplug that cable and plug it back in. I think it just may be loose. I hope I was helpful!

assuming the following; -Your computer is fully booting, -Your current screen is fully functional, and not a bad part,

  1. Open up the screen panel, and ensure the connections are both clean and stable.
  2. connect an external monitor, and see if you can get an image on that 2b) if you can, head to computer manager, and reload the drivers for your imaging hardware.
  3. possible issue is with connectors on the bottom of the device, make sure those are properly connected.
  4. there could be a GPU failure as well. (this can happen from overheating, shorting, or power surges)