TLP VS RyzenAdj

Usually full charge give me about ~5 hours, after install tlp here https://linrunner.de/tlp

https://github.com/linrunner/TLP/

They definately do conflict, it was discussed back when ppd first arrived: https://github.com/linrunner/TLP/issues/564

If you're certain your GPU has deeper power saving states than P8, I would start by checking why it's not using them. Maybe tlp, powertop or nvtop (or their documentation) can help.

I use TLP for my personal laptop https://linrunner.de/tlp/

if you don't already have it installed, you could try tlp: https://linrunner.de/tlp/

Install TLP

Maybe will be helpfull https://github.com/linrunner/TLP/issues/596

Out of curiousity how the 7840HS performs at different TDP, I did some benchmarks using Geekbench 6.2.0. To change the TDP, I've used the software RyzenAdj like so:

TLDR: Ryzen Adj.

A few years ago I did a bunch of poking w/ a 4800H, you can see the actual mechanics of using RyzenAdj. There are also Geekbench 5 benchmarks linked from the doc at different power limits which you can compare to 4800U devices on Geekbench's site: https://github.com/lhl/linuxlaptops/wiki/2020-MECHREVO-Code-...

Note, each laptop manufacturer may choose their different power limits (and like Intel, AMD's curves are largely driven by temperature, so dependent on cooling solution and other settings).

This is a good summary of some of how Ryzen Mobile's power limiting works (actually, read that whole wiki if you're interested in the topic): https://github.com/FlyGoat/RyzenAdj/wiki/Renoir-Tuning-Guide

I'd also look up "AMD PMF" (their equivalent of DPTF) which only recently made it's way to the Linux kernel (but of course, that will include loads of details anyone can look through): https://www.phoronix.com/news/AMD-PMF-CnQF-Linux-6.1

GitHub - FlyGoat/RyzenAdj: Adjust power management settings for Ryzen APUs

Check out https://github.com/FlyGoat/RyzenAdj

If you want to get numbers you can download https://github.com/FlyGoat/RyzenAdj/releases

That app just uses (under the hood) this one https://github.com/FlyGoat/RyzenAdj - g-helper not using that , as it requires admin rights to run :)