For those with Lenovo on AMD
I mean, yes.
power-profiles-daemon only works with certain Intel hardware, it’s not limited to Lenovo’s AMD-based laptops:
$ powerprofilesctl * balanced: Driver: placeholder power-saver: Driver: placeholder
Pretty much useless, and yet it’s KDE’s and GNOME’s default and conflicts with every other power management daemon.
In case changing
/sys/firmware/acpi/platform_profile does not have any effect, there are a couple of other ways to change the power limits:
# Performance echo '\_SB.PCI0.LPC0.EC0.HKEY.DYTC 0x17d001' | sudo tee /proc/acpi/call # Balanced echo '\_SB.PCI0.LPC0.EC0.HKEY.DYTC 0x15d001' | sudo tee /proc/acpi/call # Low power echo '\_SB.PCI0.LPC0.EC0.HKEY.DYTC 0x12d001' | sudo tee /proc/acpi/call
Note that I only tested these on my own T14s with a Ryzen 4750pro. Should work for other Ryzen based models too though.
*I don’t take any responsability when your machine goes up in flames. *