Hello !
I just discovered this post.
I have a recent Asus 8th gen CPU and the autonomy is not good. 10hours on Windows 10 and less than 5h on Solus. I've tried to use powertop --auto-tune but i got "modeprobe cpufreq_stats failedLoaded" issue. I discovered that the cpufreq_stats is no longer a kernel module but built-in to the kernel (I'm running kernel 5.0 since a recent update). Powertop should not use modprobe but i don't know how to tell it.
bbswitch seems to be a good solution, but i would like to keep my nvidia card working if possible. Can we easily switch between intel and nvidia GPU ?
I have heard some things about TLP, like it could break the system, is that true or it's overacting?
Since few years i start to use Linux, Solus is by far the best distro i've ever use. The battery management is the only big problem that i have for now.