Screen black, but touchscreen working, external monitor working

[hmeat]

After shutting my computer too hard, my screen now shows only black. I have connected it to an external monitor and it works, and the touch screen is still working as well. I have shone a flashlight on the screen in a dark room to test if it is a broken backlight, but nothing is visible under the flashlight. Is there a fix, or do I need to buy a replacement screen?

[Riddle_Decipher]

@hmeat Greetings from the HP Community!

Here's what you need to do, to identify the issue and resolve it accordingly:

• If not done already, check if it works fine on the BIOS screen to identify if it's either a hardware or a software issue:
  • If it works fine on the BIOS (Accessed while tapping F10 during a restart) it's a software issue & I suggest creating a new user account to check if that works better, for starters)
  • However, if it doesn't work within the BIOS either, I'm afraid it's a hardware malfunction.

While you respond to that, I have a few more steps that should help: 

Perform a power reset (no data loss) using these steps: Click here, proceed to next step if this works

Attempt to run a test from the HP hardware diagnostic tool, using this link: Click here for details.

If the issue appears on the diagnostics, it could again, determine a hardware failure,

If they don't appear on bios & the hardware tests passed: please update the BIOS & Chip-set drivers from the HP website using this link: Click here

if the issue persists, reinstall windows using the recovery partition or the recovery media to fix the issue,
use this link for details on performing the recovery: Click here

Let me know how that pans out,

If you feel I was helpful, simply click on Accept as Solution to help the community grow,

That said, I will have someone follow-up on this to ensure you've been helped,

Just in case you don't get back to us within 24 - 48hrs, and have a good day, ahead.

[hmeat]

Thank you for the suggestions, however I resolved the issue. The cable connecting my screen was disconnected. I simply removed the screen, re-secured the cable, and now my laptop is working perfectly again.

[Riddle_Decipher]

@hmeat Sometimes the simplest of steps does the trick, I'm glad you've got that sorted,

And if you need anything else, feel free to get back to us, anytime.

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.