HDMI not working

Hi guys, On my Hackintosh HDMI does not work. When I plug in HDMI cable in HDMI port, the laptop screen goes blank for couple of seconds and then comes back but no screen on HDMI. I followed dortania guide. macOS Big Sur(Open Core 0.7.1) My specs: Intel UHD Graphics 620 Intel Core i5 10210U. 8GB RAM 512 GB NVMe SSD

submitted by /u/asrarsunge998
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