Lm_sensors on debian / rock5

#1

I’ve noticed a few members using lm_sensors to check PD voltage…

Attempts to set this up using sensors-detect (with latest debian updates installed) gives

$ sudo sensors-detect
# sensors-detect version 3.6.0
# DMI data unavailable, please consider installing dmidecode 2.7
# or later for better results.
# Kernel: 5.10.66-28-rockchip-gc428536281d6 aarch64
# Cannot show processor info on aarch64 architecture.
*snip*
Next adapter: rk3x-i2c (i2c-6)
Do you want to scan it? (YES/no/selectively):
Client found at address 0x51
Handled by driver `rtc-hym8563' (built-in), chip type `hym8563'
    (note: this is probably NOT a sensor chip!)

Next adapter: rk3x-i2c (i2c-7)
Do you want to scan it? (YES/no/selectively):

Is there a way to force the rk3x-i2c ? (or does someone have a good config I can copy from)

#2

I just ran sensors without sensors-detect and its already there.

gpu_thermal-virtual-0
Adapter: Virtual device
temp1:        +68.4 C

littlecore_thermal-virtual-0
Adapter: Virtual device
temp1:        +73.0 C

bigcore0_thermal-virtual-0
Adapter: Virtual device
temp1:        +73.9 C

tcpm_source_psy_4_0022-i2c-4-22
Adapter: rk3x-i2c
in0:           5.00 V  (min =  +5.00 V, max =  +5.00 V)
curr1:         1.50 A  (max =  +1.50 A)

npu_thermal-virtual-0
Adapter: Virtual device
temp1:        +70.2 C

center_thermal-virtual-0
Adapter: Virtual device
temp1:        +69.3 C

bigcore1_thermal-virtual-0
Adapter: Virtual device
temp1:        +74.8 C

soc_thermal-virtual-0
Adapter: Virtual device
temp1:        +72.1 C  (crit = +115.0 C)

PD is showing 5v as its been bypassed with a dumb 12v psu.

#3

OMG, I feel like an idiot. Yes, its already there… Thanks !

tcpm_source_psy_4_0022-i2c-4-22
Adapter: rk3x-i2c
in0:          20.00 V  (min = +20.00 V, max = +20.00 V)
curr1:         3.25 A  (max =  +3.25 A)

This is negotiated PD right ? Its not consuming that much right ??

#4

Yep negotiated PD not actual.
If you get one of those little usb-c power meters on idle you will get about 1.5 watt.
nvme will bump a couple of watt.
Running stress-ng --cpu 8 --vm 8 --vm-bytes 256M with nvme currently has me 11.5 watt.
I have a dumb 12 psu so the PD means nothing but 11.84v 0.95 amp
The npu adds aprox 1watt per core and if mem served me right gpu at max is about 1 watt also.

tcpm_source_psy_4_0022-i2c-4-22
Adapter: rk3x-i2c
in0:           5.00 V  (min =  +5.00 V, max =  +5.00 V)
curr1:         1.50 A  (max =  +1.50 A)