Thank you for replys.
My PC is OMEN 45L.
HP had released BIOS update several times after the post, but they did not solve this problem.
The OMEN 45L's PCIe slot is x4 type. The detectable network card is PCIe x1, and unsuccessful DeckLink Mini Monitor 4K is PCIe x4.
I made the hypothesis that the slot can't accept x4 card for some unknown reason.
So I bought new DeckLink Mini Monitor HD, which is x1 card, but it did not detected by Windows device manager and Desktop Video as well.
I can do nothing for now.
AmitBhorania wrote:I am having similar issue with my HP Omen Desktop with Windows 11. Decklink mini Recorder 4K is not getting detected in Desktop Video Software and in Device Manager.
@Minami, Were you able to find the solution? Appreciate any Help.