Screen not Working, External Display does

[Ikswolokos]

I recently bought an Elitebook 850 G8 and the screen stopped turning on at boot. Connecting to an external display works just fine and I can use the laptop, except as a portable computer. Is there a way to check if this is a hardware or software issue?

[ub6424]

Hello @Ikswolokos 

Sorry to hear that you are having problems ... I would like to help you.

This indicates screen backlight failure or other technical screen defect.

Recommendation and solution

In your case: Service is required !
- The computer should be disassembled and checked.
- [Always recommended] Thermal paste for CPU GPU and bridges should be renewed
- [Always recommended] The function of the fan(s) must be checked

- The internal display cable that goes from motherboard to screen has to be checked or replaced

- The screen has to checked or replaced

- Short circuit test

- General cleaning ...

HP warranty valid -> Contact HP Support for service repair

HP warranty expired:

If you can't do that, you should have it serviced by a professional notebook (chip level) repair store.

Good luck