My screen is falling

[Ahmad3011]

This is 40Hz

[ub6424]

Hello @Ahmad3011 

So your GPU (graphic processing unit) should be ok ( you said external monitor is ok )

Recommendation and solution:

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

- The internal display cable from motherboard to screen has to be checked

- The screen has to checked/replaced

- Short circuit test

- General cleaning ...

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

best regards

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[Ahmad3011]

Thank you for your help 

[ub6424]

Hello @Ahmad3011 

If your repair is done, come back to here to report your results.

Good luck

best regards

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