I'm thinking about buying a somewhat high end laptop and

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I'm thinking about buying a somewhat high end laptop and use it with a different 144hz monitor at home. this laptop has mini displayport out, and the monitor needs displayport 1.2 in.
My question is, can I use a minidisplayport to displayport for this? I'm seeing a lot of expensive active adaptors, but is this only if I wanted to convert from hdmi to displayport?

hoping for at least 1 serious answer
in return, here is a picture of steve jobs, dying, trying to cure cancer with herbal tea