Laptop screen going black

[teal cloud]

Im currently working on fixing a laptop but its having problems im not familiar with at all. it would work for a couple minutes then screen will go black but the back light is still on and the fan is spinning. then i would restart it and it would go black again as soon as put log into windows. im not sure if this is an overheating thing, a driver error, a drive error or some type of corrupted files but can anybody give advice?

also there were some errors when it came to downloading updates hopefully i can get insight on that too

the laptop model number is HP Laptop 17-cn2068cl

[glass robin]

Does the computer remain active otherwise while the monitor goes black? For instance, if you start a YouTube video, will it continue running?

I would recommend that you try booting in safe mode and see if that helps. If it does, a simple reset should resolve the issue.

[teal cloud]

No, i also plugged it into a tv and tried using it. no luck. only shows up on tv screen when i restart

[teal cloud]

it just did the same thing after i put the recovery key in

[teal cloud]

@glass robin

didnt mean to edit it but

this laptop is a pain in the ass lol

[glass robin]

So safe mode didn't do anything?

[teal cloud]

it didnt go into safe mode at first

i had to do it through system configuration but i got it now

nothing happening yet

@glass robin is there anything i should look for or check while its on

never mind screen went black again

still having issues

[glass robin]

Cool! So the problem runs deeper then.

If you start a YouTube video with audio, does the audio continue after the screen goes black?

(already asked this, but the answer was overwritten) 😦

[teal cloud]

No

[glass robin]

Got it. Have you checked the temperatures with HWMonitor or something similar? And what happens if you go into bios? Does it crash there too?

[teal cloud]

i checked temps with throttlestop. it was idling around 50 but ill check again and make sure. also it does it in bios as well

it may be overheating

i know hp laptops are known for bad cooling

i opened it and there was a good amount of thermal paste and no dust in the fans

the laptop shut off soon as i plugged it in

@glass robin

[glass robin]

Those are some suspicious temperatures unless it's under stress... And the fact that it does the same thing in bios makes me think it's something else than bad cooling.

This is getting tricky... Try resetting your bios just to rule that out.

[teal cloud]

done

didnt work

laptop cut off around 85 C

[glass robin]

Maybe your bios was updated without you knowing? Could be faulty default values...

Foe example: https://linustechtips.com/topic/244196-cpu-overheating-in-bios/