WMI Linux Temperature Driver Being Worked On For Gigabyte Motherboards

[kiffmet]

On my X570 Aorus Pro using the IT87 driver for reading sensors only yields a bunch of garbage voltage and temperature readings, which isn't surprising considering the driver is unmaintained and every mainboard vendor wires up this chip slightly differently. As for sIO, I am wondering whether a specific driver will even work for me, considering my kernel is already complaining about something being broken in this regard.

ACPI Warning: SystemIO range 0x0000000000000B00-0x0000000000000B08 conflicts with OpRegion 0x0000000000000B00-0x0000000000000B0F (\GSA1.SMBI) (20201113/utaddress-204)

Well, at least the MMU-groups are properly separated...

[Keith Myers]

Try loading the driver with this module parameter.

sudo modprobe it87 ignore_resource_conflict=1 mmio=1

That should get around the ACPI conflict warnings.

[kiffmet]

Keith Myers are you using an out-of-tree it87 driver? modinfo shows that mine doesn't have these options.

[mazumoto]

Well, this is great to hear, albeit it's really sad that none of the big do-it-yourself motherboard vendors is supporting linux.
When I built a new Ryzen 3000 system a year and a half ago, I wasn't aware of these issues and I decided to use an Gigabyte X570 Aorus Master (mainly because there were fitting water cooling options for the chipset available). The problems with sensors, leds and the acpi warnings made me regret that decision - I even wrote a support ticket pleading them to release the spec sheets to the linux developers - of course to no avail.
Unfortunately it seems that the WMI driver is not a full solution - but something is better than nothing.

I'd really wish that there was at least a single motherboard vendor that would support linux at least somewhat. Supporting coreboot (as I believe that'd solve such problems) would be even greater and pretty much an insta-buy from me.

[skeevy420]

Picks up my B550M now. Patched linux-ck 5.11.11-3.

gigabyte_wmi-virtual-0 
Adapter: Virtual device
temp1:        +39.0°C  
temp2:        +39.0°C  
temp3:        +48.0°C  
temp4:        +24.0°C  
temp5:        +38.0°C  
temp6:        +45.0°C  

acpitz-acpi-0
Adapter: ACPI interface
temp1:        +16.8°C  (crit = +20.8°C)

amdgpu-pci-0100
Adapter: PCI adapter
vddgfx:        1.12 V  
fan1:         697 RPM  (min =    0 RPM, max = 4500 RPM)
edge:         +54.0°C  (crit = +94.0°C, hyst = -273.1°C)
power1:       20.02 W  (cap = 135.00 W)

k10temp-pci-00c3
Adapter: PCI adapter
Tctl:         +48.6°C  
Tdie:         +48.6°C

Had a long day yesterday and I'm so exhausted that this morning I patched the kernel, built it, and rebooted into my system where I realized it wasn't working because I forgot to set the kernel config

[Keith Myers]

Keith Myers are you using an out-of-tree it87 driver? modinfo shows that mine doesn't have these options.

I used to use an it87 driver by Guenter Roeck. Dropped it when the better asus-wmi-sensors became available. Those parameters were available until he pulled the driver from github.

[Keith Myers]

This is what the asus-wmi-sensors can report on ASUS motherboards with the WMI interface in the BIOS.

asuswmisensors-isa-0000
Adapter: ISA adapter
CPU Core Voltage: 1.25 V
CPU SOC Voltage: 1.08 V
DRAM Voltage: 1.42 V
VDDP Voltage: 501.00 mV
1.8V PLL Voltage: 1.83 V
+12V Voltage: 11.39 V
+5V Voltage: 4.61 V
3VSB Voltage: 3.33 V
VBAT Voltage: 3.21 V
AVCC3 Voltage: 3.33 V
SB 1.05V Voltage: 1.08 V
CPU Core Voltage: 1.27 V
CPU SOC Voltage: 1.09 V
DRAM Voltage: 1.47 V
CPU Fan: 1901 RPM
Chassis Fan 1: 0 RPM
Chassis Fan 2: 0 RPM
Chassis Fan 3: 0 RPM
HAMP Fan: 0 RPM
Water Pump: 0 RPM
CPU OPT: 0 RPM
Water Flow: 0 RPM
AIO Pump: 0 RPM
CPU Temperature: +70.0°C
CPU Socket Temperature: +44.0°C
Motherboard Temperature: +29.0°C
Chipset Temperature: +44.0°C
Tsensor 1 Temperature: +216.0°C
CPU VRM Temperature: +47.0°C
Water In: +216.0°C
Water Out: +30.0°C
CPU VRM Output Current: 112.00 A

If you have one of the boards mentioned in the readme, you too can have Windows equivalent sensors reporting.
https://github.com/electrified/asus-wmi-sensors

[Keith Myers]

I'd really wish that there was at least a single motherboard vendor that would support linux at least somewhat. Supporting coreboot (as I believe that'd solve such problems) would be even greater and pretty much an insta-buy from me.

Have you considered adding the zenpower driver to your kernel? That would get you voltages, currents and power. Added to your Gigabyte WMI driver for your fan readouts, you would almost duplicate what's available in Windows.
https://github.com/ocerman/zenpower

[sandy8925]

Try loading the driver with this module parameter.

sudo modprobe it87 ignore_resource_conflict=1 mmio=1

That should get around the ACPI conflict warnings.

IIRC the kernel developers don't recommend that - they had a good reason but I forgot what it was.

[Keith Myers]

I view it the same as what you have to do with the standard nct6775 driver, you have to use the acpi_enforce_resources=lax kernel command to get it to work on Intel cpus.

You get a warning too but everyone does it anyway. Ignore it and get at least some of the sensor readings. Or don't use it as recommended by the warning and get nothing.