Laptop screen flickering after connecting to a second monitor via HDMI

Hey there,

I have a Huawei Matebook D (i5 8250u) with latest version of Big Sur and OC 0.7.1. It has an HDMI port which I never used until today, I connected my laptop to a HDMI monitor and the HDMI monitor was working fine but my laptop screen went black. I shut down my hackintosh when I finished using the external monitor anymore and now that I arrived home, my integrated screen is flickering. Any way to reset display settings or something? It seems like a strange error. What could have caused this? I tried resetting nvram, no luck.

Thank you in advance.

submitted by /u/Parawhoar
[link] [comments]