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

mallony asked
Last Modified: 2015-11-28

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?
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