You definitely want a Active not passive. I have bought adapters that just don't work. If you have an avenue to buy retail local where you can return one if it does not work I would do that and try another. If it still doesn't work, you may have a bad port. It can also be that your monitory is finicky about it. So plug into another HDMI device like another monitor or TV and see if that works. If all that doesn't work, if you have a spare drive you can install Windows to, the do a fresh install and see if the port then works. I have had them where I thought they were dead but it was really just Windows was messed up.
This is the link to AMD support if you need them. https://www.amd.com/en/support/contact-email-form
I would also suggest you talk to the company that made your card if this doesn't work too, as they may have advice or offer an RMA.
Good Luck!