Legacy display driver Issue in Ubuntu 24.04

Hi,

Currently I am using GT216GLM [Quadro FX 880M] graphics card. After recent apt upgrade, my kernel version got upgraded from 6.8 to 6.11 and nouveau driver got blacklisted. Due to which I am facing graphics driver issues. Even after I un-installed the kernel 6.11(currently using 6.8 version) and un-blacklisted the nouveau, still I am not getting the desktop(only CLI works). I also installed so many nvidia driver versions compatible for graphics card and kernel but it doesn’t work. Any suggestion is appreciable.