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Hp 2009m screen goes black - no signal - Computer Monitors

Answers :

Change frequency setting to 60hz from the option of graphic setting using another monitor then agin connect your problematic monitor.
step1.open properties on desktop using right mouse click.
step 2.goto last tab (setting)
step3.goto advance optinion
step 4.goto third tab(monitor)
and there is option of frequency change it to 60hz save it and press enter.
now shutdown computer then connect your screen goes monitor check it.hope it works.
when screen black its mean the range of signal frequency higher then compatible frequency.
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