Hello I was gone for few days. I did some experimets, I was stupid enough for my first install to go with kernel Kernel 5.4.y now I flashed stock kernel 4.14.y and all is working fine. But one BIG drawback of kernel 5.4.y. is samba transfer speed on my home network which was max 48MB/s now with 4.14.y kernel is 98-100MB/s
I use odroid as a home server and this is one big thing to consider if you want to go with experimental kernel. In kernel 4.14 you can control fan because you have file fan_speed.
I managed to control fan by editing
nano /etc/rc.local
TRIP_POINT_0=25000
TRIP_POINT_1=55000
TRIP_POINT_2=70000
echo $TRIP_POINT_0 > /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_te$
echo $TRIP_POINT_0 > /sys/devices/virtual/thermal/thermal_zone1/trip_point_0_te$
echo $TRIP_POINT_0 > /sys/devices/virtual/thermal/thermal_zone2/trip_point_0_te$
echo $TRIP_POINT_0 > /sys/devices/virtual/thermal/thermal_zone3/trip_point_0_te$
echo $TRIP_POINT_1 > /sys/devices/virtual/thermal/thermal_zone0/trip_point_1_te$
echo $TRIP_POINT_1 > /sys/devices/virtual/thermal/thermal_zone1/trip_point_1_te$
echo $TRIP_POINT_1 > /sys/devices/virtual/thermal/thermal_zone2/trip_point_1_te$
echo $TRIP_POINT_1 > /sys/devices/virtual/thermal/thermal_zone3/trip_point_1_te$
echo $TRIP_POINT_2 > /sys/devices/virtual/thermal/thermal_zone0/trip_point_2_te$
echo $TRIP_POINT_2 > /sys/devices/virtual/thermal/thermal_zone1/trip_point_2_te$
echo $TRIP_POINT_2 > /sys/devices/virtual/thermal/thermal_zone2/trip_point_2_te$
echo $TRIP_POINT_2 > /sys/devices/virtual/thermal/thermal_zone3/trip_point_2_te$
# Target fan speed (PWM): 0, 60 180, 240
echo "0 60 180 240" > /sys/devices/platform/pwm-fan/hwmon/hwmon0/fan_speed
Now my odroid is super quiet as home server with 45C in average, I run on it OMV5, in docker (PiHole, transmission, unifi-controller, duckdns and watchtower).
echo "0 60 180 240" > /sys/devices/platform/pwm-fan/hwmon/hwmon0/fan_speed
value of 60 is not enough to start odroid fan, but second value of 180 starts the fan and then it continues to spin on 60pwm. This is something that will everyone need to try for himself but quiet is precious.
I hope this will help someone like me.
Regards.