Question / Help BlackScreen in my laptop

Hi, i need help and i hope someone answers.
i donwload the OBS studio and apear the black screen like this
Capturaobs.PNG


the update of obs and my nvidia are ok.
after in my nvidia control panel add the obs to my program conf, and i select the graphics integrated like this.
Capturaobs2.PNG

and continue with my black screen.
some one have the answer of this problem?
 
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