On Monday, 5 February 2024 15:47:08 CEST Nate wrote: > AMD has introduced a feature called Power Management Framework. > See here for more info: https://www.phoronix.com/news/AMD-PMF-Linux-Driver > > It seems that this module is not included in the Debian Linux Kernel.
With the upload of 6.9.7 this module now is available in the kernel. AFAIK one of my systems should benefit from this too: MB: Asus ROG STRIX B550-F GAMING, BIOS 3607 03/18/2024 CPU(/APU?): AMD Ryzen 5 5500GT amd-microcode: version 3.20240116.2+nmu1 (has AMD-TEE firmware, #1062678) firmware-amd-graphics: 20240220-1~exp0 (sorry ;-P) power-profiles-daemon: 0.21-2 So I think I'm all set... > A bit of context: > The power-profiles-daemon software gained recently support for amd-pstate > driver, and also gained support to handle simultaneously cpu driver > (amd-pstate) and platform driver (amd-pmf). > (https://gitlab.freedesktop.org/upower/power-profiles-daemon/-/merge_request > s/127). It seems that the power-profiles-daemon in unstable do not include > the commit that allows to handle both drivers at the same time. > So I've installed the power-profile-daemons for jammy from this Ubuntu PPA > (https://launchpad.net/~superm1/+archive/ubuntu/ppd/+packages). The version in that PPA is 0.21-1, so the Debian Testing/Unstable version should be fine now? > And when I list the existing power-profiles I get the following: > > user@machine:> sudo powerprofilesctl > performance: > CpuDriver: amd_pstate > Degraded: no > > * balanced: > CpuDriver: amd_pstate > PlatformDriver: placeholder > > power-saver: > CpuDriver: amd_pstate > PlatformDriver: placeholder > > This (PlatformDriver: placeholder) indicates that the AMD_PMF module is not > included in the kernel. So I booted into the 6.9.7 kernel and ran that command ... only to be greeted with the exact same output ... So I verified whether AMD_PMF was indeed included ... and it was. Then I ran ``lsmod | grep amd`` and I saw various modules listed, but I did NOT see an ``amd_pmf`` driver loaded. Or and ``amdtee`` ... So I did ``modprobe amd_pmf`` and checked ``lsmod`` again and there it was: ```sh # lsmod | grep amd amd_pmf 61440 0 amdtee 28672 0 amd_sfh 49152 1 amd_pmf tee 45056 2 amd_pmf,amdtee amdgpu 12845056 0 amd_atl 40960 1 edac_mce_amd 28672 0 kvm_amd 184320 0 kvm 1343488 1 kvm_amd amdxcp 12288 1 amdgpu drm_exec 12288 1 amdgpu gpu_sched 65536 1 amdgpu drm_buddy 20480 1 amdgpu drm_suballoc_helper 12288 1 amdgpu drm_display_helper 262144 1 amdgpu drm_ttm_helper 12288 1 amdgpu ttm 102400 2 amdgpu,drm_ttm_helper drm_kms_helper 249856 2 drm_display_helper,amdgpu platform_profile 12288 2 amd_pmf,asus_wmi i2c_algo_bit 12288 1 amdgpu ccp 155648 2 kvm_amd,amdtee video 73728 2 asus_wmi,amdgpu button 24576 1 amd_pmf drm 737280 11 gpu_sched,drm_kms_helper,drm_exec,drm_suballoc_helper,drm_display_helper,drm_buddy,amdgpu,drm_ttm_helper,ttm,amdxcp hid 172032 3 usbhid,hid_generic,amd_sfh gpio_amdpt 16384 0 gpio_generic 20480 1 gpio_amdpt ``` Ran ``powerprofilesctl`` again ... and saw no change (thus still 'placeholder') > There may be technical limitations that I am not aware of. I would have expected that amd_pmf and related modules would be loaded automatically. And ofc that it would actually work. The only real thing that I can think off that could interfere (from my side) is that I'm still using an 'old fashioned' BIOS, thus not UEFI. What other causes could there be that makes it not work properly? Cheers, Diederik
signature.asc
Description: This is a digitally signed message part.
