found 1038981 linux-image-6.1.0-10-amd64/6.1.37-1 found 1038981 linux/6.1.0-10 thanks The same problem exists after the recent kernel upgrade to linux-image-6.1.0-10-amd64 version 6.1.37-1. $ uname -r 6.1.0-10-amd64 $ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_min_freq 400000 400000 400000 400000 400000 400000 400000 400000 $ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq 400016 399983 400012 400008 400015 399995 400016 2300000 $ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq 400000 400000 400000 400000 400000 400000 400000 400000 As we see, the value 2300000 is too high! I'd expect around 400000. As the fun is running, the reported elevated values (here, 2.4 GHz) are probably real. Gratefully, AlMa