Hi Clocks and power-management in general are handled by the kernel mode driver, so please report this AMDGPU driver. https://gitlab.freedesktop.org/drm/amd/-/issues
On Fri, 2026-01-23 at 06:22 +0000, Marko Grandy wrote: > Dear devs of MESA, > first of all thanks for your amazing work! > > I recently bought my first AMD GPU with a 9070xt and recognized the > lowest VRAM clock achieved on my system is 192MHz in an idle state. > This > leads to a VRAM temperature in idle (i have a good airflow in my > case) > of ~58°C and an idle power consumption (per Driver) of 15-20W. > The lowest VRAM clock in the lowest power state in the LACT tool is > also > 192MHz. So i think my system reaches the lowest power state. In LACT, > the only thing i have done is reducing the max power draw. > > On the same machine on Windows with the AMD driver 25.12.1 however, i > tested the idle behavior and i see much lower VRAM clock speeds, > resulting in a power draw of 3-8W and therefore the VRAM temp is > <45°C. > > So ideally, on my Linux system, i would see the VRAM clock down more > to > save some power and give the VRAM some "winter" :-) > > Description of my sytem: > - Distro CachyOS on Kernel linux-cachyos 6.18.6-2 > - DE: KDE Plasma 6.5.5 > - CPU: AMD Ryzen 5 5600X > - GPU: AMD Radeon 9070xt > - Monitor Acer VG270UP 2540x1440 @ 144Hz > > If you need any more information, please let me know. > > Best regards, > Marko
