Hello,
I have installed the 20220121_raspi_1_bullseye.img.xz image from
https://raspi.debian.net/tested-images/
on one of my old Raspberry Pi 1B.
As I can see cpu scaling seems to not work.
|I have to load the kernel model.
root@counter:~# lsmod | grep cpu
cpufreq_ondemand 16384 0
/sys/devices/system/cpu/cpu/X//cpufreq/scaling_max_freq is not available
so I compile vcgencmd to test it.
|root@counter:~# vcgencmd measure_clock arm
frequency(48)=700000000
Is always 700 Mhz, also when I try to stress the Pi with "stress --cpu 2
--timeout 60s".
root@counter:~# vcgencmd get_config int | grep freq
arm_freq=950
arm_freq_min=700
core_freq=250
sdram_freq=450
hdmi_pixel_freq_limit:0=0x9a7ec80
So the next step I have try is to increase arm_freq_min to 800.
After reboot
root@counter:~# vcgencmd measure_clock arm
frequency(48)=800000000
So I verify that vcgencmd show the correct value.
Can someone reproduce this?
Why did cpu scaling not work on pi1 ?
Best Regards
