I have been using Ubuntu for quite sometime now. I have a dual boot system with Windows 10 and Ubuntu 18.04. I have used this combo ever since Ubuntu 18.04 came out. Earlier, grub would always show and accept 1920x1080 as its display resolution. I have had various system crashes along the way due to which I have had to install Windows and Ubuntu thrice. Recently, I have noticed a peculiar thing. My grub doesn't show 1920x1080 resolution when I use videoinfo command at grub terminal. The highest that it goes is 1280x720. I have tried to fix it by manually making an entry in the grub file but it was of no help.
Can anyone please suggest me a possible fix for it? Is there something wrong with the OS? Is there something wrong with the BIOS (MSI Motherboard)? Is there something wrong with the drivers?
Note: I am running in UEFI mode.