Updated: March 31, 2023
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by Christine Tomas
Tech Expert & Writer
1461 resolved issues
Verified Expert in:
Smartphones, Networks, Tablets, Computers

I have power but nothing on screen

Intel core i5 intel IRISxe Samsung laptop. I pressed Fn and an f key cannot get screen back
author

Hello, thank you for using Howly. I’ll be happy to help you out! May I ask your name?

Customer Replay

*****

author

Nice to meet you, *****!
When does it happen?

Customer Replay

Happened once when I was using an Fn key. I cannot turn it off or on. Nothing can be seen on screen

author

Do you press only Fn key or combination?

Customer Replay

Fn plus another f key but I am unsure which

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author

Can you give me a model laptop?

Customer Replay

Where can I find it on the case?

author

Check under the laptop.

Customer Replay

Model np750oxda

image

author


Try to use a combination of FN and F4.

Customer Replay

Nothing. No response with power button
I left the computer unplugged and recharged it again no response at all when trying to turn it on.

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author

Please, try to Press Ctrl + Win + Shift + B

Customer Replay

No response. It is difficult to tell if the computer is switched on. Nothing on screen, no noise.

author

When you are trying to charge it, do you see any light indicators, which it is charging?

Customer Replay

To my great surprise after pressing the start button twice. the computer has started. !!!!

Customer Replay

I ran the battery down and then charged it colour went from red to blue.

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author

Is the screen working now?

Customer Replay

yes. Any idea why?

author

Perfect
It might be a glitch from the software side
Please, if it will happen one more time - contact us
Is there anything else I can do for you today?

Customer Replay

but do you think the key combination you suggested did anything?

author

Yes, it might be the case.
This is a combination to reset the video driver

Customer Replay

Ok thanks very much. I was thinking it was dead and burried.

author

I'm glad everything works now!
Is there anything else I can do for you today?

Customer Replay

everything was working until I pressed Fn +F9 . The screen went black and nothing worked. thinking about it this was the same key combination I used the last time it stopped working

author

The solution that had helped you before, didn't work now?

Customer Replay

I have sound but no picture

author

Have you tried pressing Fn + F9 again?

Customer Replay

good idea! It is working.

author

Perfect!
Is there anything else I can do for you today?

Customer Replay

why do you think this key combination causes a shutdown?

author

Because that's what the developers intended)

Customer Replay

ok thanks

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