Bios monitor input not supported

rf.to

When ever i boot into the beelink into bios the monitor says "Input not supported" and as soon as it boots into the os itself it is fine. the monitor i am using is an "acer KB272 Bbi" made in sep 2022 and the beelink i have is the ser6 with ryzen 6900HX 32gb and 1tb ssd "SER6-P-E-321TBEJOW64PRO-DP/XA"

tuiguang6

Hello there,
could you take a picture to us to show your problem?so that we can help you better.