Need a solution to apply a hardware support patch to my current working kernel in Ubuntu 22.04, so that it will fix the exact issue (here keyboard not working) without affecting other settings.
Tried dual booting Ubuntu on my laptop(Asus vivobook s14-K3402ZA), the installation succeeded but keyboard was not working from boot, later found that only external keyboard is supporting and internal keyboard not working with Ubuntu
22.04 LTS - kernel
The issue was identified at “Try before install” and do proceed because I found a patch online that solved the issue for similar models - from the information got from comments It will be added in a future 6.1 kernel release.
But in order to get it working on current mainline kernel, Tried the steps mentioned in this answer.
Downloaded latest longterm 5.15 release
5.15.74, Successfully complied the
.deb package and installed - the keyboard issue fixed but there are several other issues regarding display brightness, scaling, refresh rate etc.