Package: linux-image-amd64 Version: 6.5.10-1~bpo12+1 Severity: normal X-Debbugs-Cc: nathan.m...@gmail.com
Hi, 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. I have found '# CONFIG_AMD_PMF is not set' for the following versions : - linux-image-6.1.0-11-amd64_6.1.38-4 - linux-image-6.5.0-0.deb12.4-amd64_6.5.10-1~bpo12+1 - linux-image-6.6.13-amd64_6.6.13-1 Enabling this would offer better battery life for AMD Laptops (like my Framework 13). 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_requests/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). 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. Would be possible to compile it as a module in the kernel ? There may be technical limitations that I am not aware of. Thank your for your time, Best regards, Nate -- System Information: Debian Release: 12.4 APT prefers stable-security APT policy: (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.5.0-0.deb12.4-amd64 (SMP w/16 CPU threads; PREEMPT) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-amd64 depends on: ii linux-image-6.5.0-0.deb12.4-amd64 6.5.10-1~bpo12+1 linux-image-amd64 recommends no packages. linux-image-amd64 suggests no packages. -- no debconf information
