Hi!
I seem to have the same problem described here:
I have an Asus Tinkerboard, not the S version.
Today I upgraded from the latest Asus TinkerOS image:
20190821-tinker-board-linaro-stretch-alip-v2.0.11.img
to:
Armbian_19.11.3.346_Tinkerboard_buster_current_5.3.15_minimal.img
I notice that my maximum CPU frequency has dropped from 1.80GHz to 1.61GHz.
cpufreq-info now reports:
$ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 115 us.
hardware limits: 126 MHz - 1.61 GHz
...
and my cpufrequtils config is unmodified:
$ cat /etc/default/cpufrequtils
ENABLE=true
MIN_SPEED=600000
MAX_SPEED=1900000
GOVERNOR=ondemand
Whereas on TinkerOS, cpufreq-info reported:
$ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 115 us.
hardware limits: 126 MHz - 1.80 GHz
...
Is this something I can change locally, or does something need to change in the Armbian image?