The issues has been touched here before, but I still miss a solution: https://trisquel.info/en/forum/whats-deal-corebootlibreboot-x220230-looking-more-powerful-freedom-laptop
Like many others (perhaps everybody?) my T400s produces this annoying noise
which I learned from other users is coil whine from the CPU. It appears that
some bios/windows users have successfully solved the problem, but the
examples I have found are with other machines than the T400s.
- [Trisquel-users] CPU coil whine on T400s jbahn
