Question monitor and graphic card handshake problem in uefi

Nov 9, 2019
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hello I have a LG 24MP59G-P monitor which is connected via hdmi cable to a sapphire nitro plus rx 470 oc 4 gb, recently I flashed an original vbios to my card and from then there is no signal in uefi when on hdmi, I have explored internet about this problem and I found that it is due to a handshake issue in 1280x1024 resolution in uefi, I know that I can stay on dvi dual link cable but I insist in using of hdmi cable ?
I WONDER IF THERE IS A SOLUTION TO THIS ?
 

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