I don't know if you knew that now you can upgrade kernel using rigo, you don't have to use kernel switcher anymore. Please go to the main page of Sabayon https://www.sabayon.org/
and read the post Lxnay made about sabayon 14.01 release, you will find very useful info there!Lxnay wrote:
LTSI Linux Kernels, 3.4, 3.10 now offered
We are now tracking the 3.4 and 3.10 Long Term Stable Linux kernels, offering (almost) same-day updates to them. If you are using Sabayon in a server environment, you surely welcome this. However, if you're using Sabayon on your laptop, desktop workstation, switching between kernels or just moving to a new version has become a no-brainer operation through Rigo: just go to the preferences menu, select the kernel menu (LTS and regular kernels are listed in separate menus), pick a kernel and click "Install". Rigo will take care of updating external modules in a reliable and safe way on your behalf.
The way I see it, you have two options:
1. Try to boot with older kernel, if you did not removed it of course.
2. Try to install older kernel that worked with your computer, in case you have removed it, if you can go to terminal mode and use equo search kernel
to see available kernels and then use equo install
kernel of your choice, hope it help!