HP Compaq LA2306x Black 23" not duplicating - monitor black but ON


I have a monitor from HP Compaq LA2306x Black 23" 5ms Widescreen WLED Backlit LCD Monitor 250 cd/m2 1000:1  which is connected to my HP laptop Elitebook 820 G2 through a Utraslim docking station and the monitor it is ON but i cannot make it the monitor to duplicate the screen as it was before. i have done some update but nothing make the screen works. I only see it the black screen despite i can see the menu when press the menu Botton.

Can you please advice?
mallonyIT SpecialistAsked:
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What OS are you using? Are the correct drivers installed?

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mallonyIT SpecialistAuthor Commented:
Sorry, the problem has been solved.
mallonyIT SpecialistAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for mallony's comment #a41298868

for the following reason:

The issue is solved.
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Then tell us how it was resolved or delete the Question.
mallonyIT SpecialistAuthor Commented:
I have download the monitor driver again and reinstall it. That has solved the problem.
mallonyIT SpecialistAuthor Commented:
You are right. Rindi's comments answers my question. Sorry, i didn't realize it. But thanks for the guidance.
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Displays / Monitors

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