I was wondering if somebody figured out how we can turn off the power to the usb ports. I’ve followed the following guide: https://www.baeldung.com/linux/control-usb-power-supply but i’ve read somewhere else that not all usb ports supply this function.
I generally only use 2 usb-c ports, but would like to have the HDMI and MicroSD with me for portabilities sake, without having them draw continuous power while not in use (latest gen on both) with 13 - 7840
After tinkering and playing around for a while, I managed to get everything to autosuspend and into the amd_epp powersave options with TLP 1.6 (rawhide fedora). The lower versions didn’t work for me. Also PDD misses a lot of useful config which TLP has by default configured, so TLP was the solution for me.
Friendly reminder that TLP is awesome for Intel configurations. Using this with AMD configurations however, is going to be a huge loss in battery performance.
I’m getting about 3watt idle with fedora 39, TLP 1.6 (fedora 40), hyperland and USB + bluetooth suspended. Both the EPP profile and governor are both set to power and powersave respectively in TLP and the rest is default.
Don’t think I can go below that tbh. The PDD that is proposed in the other thread is severely outdated. I haven’t tried auto-cpufreq to the fullest to be honest, but from my anecdotal tests I could accomplish most myself by tinkering with the core freqs when setting the amd_pstate to guided. But p_state set to active does a very good job by itself.
Maybe i’m missing something, do you have more tips?