Question how to fix my screen?

Jul 18, 2020
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i opened today my pc monitor and had a purple tint and it's refreshrate drops down to 0 every 5 seconds. has a purple line to the top. under that line monitor drop the refreshrate and over that line works fine. i can see the frames change under the line . i have msi 1660 ti with hdmi to vga transformer and a DELL P2312H. i have tried with different display and work fine and i also tried with different pc the dell monitor and again has this problem. i have all the new drivers for gpu and monitor. Please if someone could help i 'll appreciate it. thanks