[lm-sensors] sensors report all zero readings on Dell PowerEdge 830

[lm-sensors] sensors report all zero readings on Dell PowerEdge 830

[Greg Vickers]

Hi,

I have installed lm-sensors v2.10.1-3 on a Dell PowerEdge 830 with 
Debian Etch (stable) installed on it.  (This version is the version of 
lm-sensors that is part of Debian Etch.)  sensors-detect works and 
detects the i801 chipset:

<snip>
Next adapter: SMBus I801 adapter at 08c0
Do you want to scan it? (YES/no/selectively):
Client found at address 0x08
Client found at address 0x2e
Handled by driver `lm85' (already loaded), chip type `lm85'
Client found at address 0x44
Probing for `Maxim MAX6633/MAX6634/MAX6635'...              No
Client found at address 0x50
Handled by driver `eeprom' (already loaded), chip type `eeprom'
Client found at address 0x52
Handled by driver `eeprom' (already loaded), chip type `eeprom'
Client found at address 0x60
Client found at address 0x69
<snip>
#----cut here----
# I2C adapter drivers
i2c-i801
# Chip drivers
lm85
eeprom
#----cut here----

So those modules are loaded successfully:
# lsmod | egrep "i801|eeprom|i2c|lm85"
i2c_dev                 8548  0
eeprom                  7024  0
lm85                   27556  0
hwmon_vid               2784  1 lm85
i2c_i801                7468  0
i2c_core               19680  4 i2c_dev,eeprom,lm85,i2c_i801

Output from dmesg:
# dmesg | grep i2c
i2c_adapter i2c-0: Unrecognized version/stepping 0x68 Defaulting to LM85.
i2c /dev entries driver

But when I run sensors:
# sensors
lm85-i2c-0-2e
Adapter: SMBus I801 adapter at 08c0
V1.5:       +0.00 V  (min =  +0.00 V, max =  +3.32 V)
VCore:      +0.00 V  (min =  +0.00 V, max =  +2.99 V)
V3.3:       +0.00 V  (min =  +0.00 V, max =  +4.38 V)
V5:        +0.00 V  (min =  +0.00 V, max =  +6.64 V)
V12:       +0.00 V  (min =  +0.00 V, max = +15.94 V)
CPU_Fan:      0 RPM  (min =    0 RPM)                     ALARM
fan2:         0 RPM  (min =    0 RPM)                     ALARM
fan3:         0 RPM  (min =    0 RPM)                     ALARM
fan4:         0 RPM  (min =    0 RPM)                     ALARM
CPU Temp:     +0 C  (low  =  -127 C, high =  +127 C)
Board Temp:   +0 C  (low  =  -127 C, high =  +127 C)
Remote Temp:  +0 C  (low  =  -127 C, high =  +127 C)
CPU_PWM:   255
Fan2_PWM:  255
Fan3_PWM:  255
vid:      +1.088 V  (VRM Version 10.0)

All of the sensors are at zero?  So something is not working :(

I've found a lm-sensors ticket #2182 logged in February this year, 
(http://www.lm-sensors.org/ticket/2182) which appears to be the same 
problem and there hasn't been an update to this ticket.

I posted to the Debian users list and was told that I might have more 
success here :)

I've checked the FAQ and can't find anything in particular relating to 
lm85 or to Dell hosts - am I missing something?

If anyone has any suggestions, hints or tips I would love to hear from you!

Thanks,
Greg

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Re: [lm-sensors] sensors report all zero readings on Dell PowerEdge

[Frank Phillips]

On 10/22/07, Greg Vickers <daehenoc@optusnet.com.au> wrote:
> Hi,
>
> I have installed lm-sensors v2.10.1-3 on a Dell PowerEdge 830 with
> Debian Etch (stable) installed on it.  (This version is the version of
> lm-sensors that is part of Debian Etch.)  sensors-detect works and
Try running a more recent version of the script:

http://www.lm-sensors.org/browser/lm-sensors/trunk/prog/detect/sensors-detect?revI66&format=txt

By looking at the specs, the Poweredge 830 is an IPMI-controlled
machine. The Baseboard Management Controller controls all the sensors.
You will need support in your kernel for IPMI and ipmisensors. The
patch for ipmisensors is here if it is not already in your distro
kernel (CONFIG_SENSORS_IPMI):

http://bmcsensors-26.sourceforge.net/

> Thanks,
> Greg

Frank

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Re: [lm-sensors] sensors report all zero readings on Dell PowerEdge

[Greg Vickers]

Hi,

Frank Phillips wrote:
> On 10/22/07, Greg Vickers <daehenoc@optusnet.com.au> wrote:
>> Hi,
>>
>> I have installed lm-sensors v2.10.1-3 on a Dell PowerEdge 830 with
>> Debian Etch (stable) installed on it.  (This version is the version of
>> lm-sensors that is part of Debian Etch.)  sensors-detect works and
> Try running a more recent version of the script:
> 
> http://www.lm-sensors.org/browser/lm-sensors/trunk/prog/detect/sensors-detect?revI66&format=txt

I ran that script and it didn't detect any extra modules apart from the 
ones that I have already loaded.

> By looking at the specs, the Poweredge 830 is an IPMI-controlled
> machine. The Baseboard Management Controller controls all the sensors.
> You will need support in your kernel for IPMI and ipmisensors. The
> patch for ipmisensors is here if it is not already in your distro
> kernel (CONFIG_SENSORS_IPMI):

Huh, CONFIG_SENSORS_IPMI is not present in 2.6.18 on Debian.

> http://bmcsensors-26.sourceforge.net/

Ah, thanks.  In the meantime I've found ipmitool for Debian and 
check_ipmi_sensors.pl for Nagios, which hopefully will do what I want it 
to do.

Thanks,
Greg

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