[i2c] No sensors with Lenovo 3000 v100 laptop (SMBus Intel 82801G)
Dimitar Gospodinov
dkg_0071 at verizon.net
Fri Jul 28 03:48:20 CEST 2006
Hello,
I have Lenovo 3000 v100 laptop with Intel Core Duo T2500 CPU, and trying to use i2c & lm_sensors for monitoring the CPU temperature.
However I do not have any success so far.
When I run sensors it says No sensors found, even though sensors-detect lists eeprom.
I do not want to believe that there is not a way to check the CPU temperature / there are not sensors on the motherboard... it would be very odd if this is the case.
Below is the output from lspci, sensors-detect and sensors.
Is there anything I can try and see why no sensors are found?
Am I missing something?
Any help is appreciated.
Dimitar
lenovo ~ # lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controller AHCI (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
04:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)
0a:01.0 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832
0a:01.1 Class 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
0a:01.2 System peripheral: Ricoh Co Ltd Unknown device 0843 (rev 01)
0a:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)
0a:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
0a:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
# sensors-detect revision 1.413 (2006/01/19 20:28:00)
This program will help you determine whichlenovo ~ # lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controller AHCI (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
04:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)
0a:01.0 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832
0a:01.1 Class 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
0a:01.2 System peripheral: Ricoh Co Ltd Unknown device 0843 (rev 01)
0a:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)
0a:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
0a:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
I2C/SMBus modules you need to
load to use lm_sensors most effectively. You need to have i2c and
lm_sensors installed before running this program.
Also, you need to be `root', or at least have access to the /dev/i2c-*
files, for most things.
If you have patched your kernel and have some drivers built in, you can
safely answer NO if asked to load some modules. In this case, things may
seem a bit confusing, but they will still work.
It is generally safe and recommended to accept the default answers to all
questions, unless you know what you're doing.
We can start with probing for (PCI) I2C or SMBus adapters.
You do not need any special privileges for this.
Do you want to probe now? (YES/no): YES
Probing for PCI bus adapters...
Use driver `i2c-i801' for device 00:1f.3: Intel ICH7
Probe succesfully concluded.
We will now try to load each adapter module in turn.
Load `i2c-i801' (say NO if built into your kernel)? (YES/no): YES
Module loaded succesfully.
If you have undetectable or unsupported adapters, you can have them
scanned by manually loading the modules before running this script.
To continue, we need module `i2c-dev' to be loaded.
If it is built-in into your kernel, you can safely skip this.
i2c-dev is not loaded. Do you want to load it now? (YES/no): YES
Module loaded succesfully.
We are now going to do the adapter probings. Some adapters may hang halfway
through; we can't really help that. Also, some chips will be double detected;
we choose the one with the highest confidence value in that case.
If you found that the adapter hung after probing a certain address, you can
specify that address to remain unprobed. That often
includes address 0x69 (clock chip).
Next adapter: SMBus I801 adapter at 18e0
Do you want to scan it? (YES/no/selectively): YES
Client found at address 0x08
Client found at address 0x30
Client found at address 0x32
Client found at address 0x44
Probing for `Maxim MAX6633/MAX6634/MAX6635'... Failed!
Client found at address 0x50
Probing for `SPD EEPROM'... Success!
(confidence 8, driver `eeprom')
Probing for `DDC monitor'... Failed!
Probing for `Maxim MAX6900'... Failed!
Client found at address 0x52
Probing for `SPD EEPROM'... Success!
(confidence 8, driver `eeprom')
Client found at address 0x69
Some chips are also accessible through the ISA bus. ISA probes are
typically a bit more dangerous, as we have to write to I/O ports to do
this. This is usually safe though.
Do you want to scan the ISA bus? (YES/no): YES
Probing for `National Semiconductor LM78'
Trying address 0x0290... Failed!
Probing for `National Semiconductor LM78-J'
Trying address 0x0290... Failed!
Probing for `National Semiconductor LM79'
Trying address 0x0290... Failed!
Probing for `Winbond W83781D'
Trying address 0x0290... Failed!
Probing for `Winbond W83782D'
Trying address 0x0290... Failed!
Probing for `Winbond W83627HF'
Trying address 0x0290... Failed!
Probing for `Winbond W83627EHF'
Trying address 0x0290... Failed!
Probing for `Silicon Integrated Systems SIS5595'
Trying general detect... Failed!
Probing for `VIA Technologies VT82C686 Integrated Sensors'
Trying general detect... Failed!
Probing for `VIA Technologies VT8231 Integrated Sensors'
Trying general detect... Failed!
Probing for `ITE IT8712F'
Trying address 0x0290... Failed!
Probing for `ITE IT8705F / SiS 950'
Trying address 0x0290... Failed!
Probing for `IPMI BMC KCS'
Trying address 0x0ca0... Failed!
Probing for `IPMI BMC SMIC'
Trying address 0x0ca8... Failed!
Some Super I/O chips may also contain sensors. Super I/O probes are
typically a bit more dangerous, as we have to write to I/O ports to do
this. This is usually safe though.
Do you want to scan for Super I/O sensors? (YES/no): YES
Probing for `ITE 8702F Super IO Sensors'
Failed! (skipping family)
Probing for `Nat. Semi. PC87351 Super IO Fan Sensors'
Failed! (skipping family)
Probing for `SMSC 47B27x Super IO Fan Sensors'
Failed! (skipping family)
Probing for `VT1211 Super IO Sensors'
Failed! (skipping family)
Probing for `Winbond W83627EHF/EHG Super IO Sensors'
Failed! (skipping family)
Do you want to scan for secondary Super I/O sensors? (YES/no): YES
Probing for `ITE 8702F Super IO Sensors'
Failed! (skipping family)
Probing for `Nat. Semi. PC87351 Super IO Fan Sensors'
Failed! (skipping family)
Probing for `SMSC 47B27x Super IO Fan Sensors'
Failed! (skipping family)
Probing for `VT1211 Super IO Sensors'
Failed! (skipping family)
Probing for `Winbond W83627EHF/EHG Super IO Sensors'
Failed! (skipping family)
Now follows a summary of the probes I have just done.
Just press ENTER to continue:
Driver `eeprom' (should be inserted):
Detects correctly:
* Bus `SMBus I801 adapter at 18e0'
Busdriver `i2c-i801', I2C address 0x50
Chip `SPD EEPROM' (confidence: 8)
* Bus `SMBus I801 adapter at 18e0'
Busdriver `i2c-i801', I2C address 0x52
Chip `SPD EEPROM' (confidence: 8)
I will now generate the commands needed to load the I2C modules.
If you want to load the modules at startup, generate a config file
below and make sure lm_sensors gets started at boot time; e.g
$ rc-update add lm_sensors default
To make the sensors modules behave correctly, add these lines to
/etc/modules.d/lm_sensors and run modules-update:
#----cut here----
# I2C module options
alias char-major-89 i2c-dev
#----end cut here----
WARNING! If you have some things built into your kernel, the list above
will contain too many modules. Skip the appropriate ones! You really should
try these commands right now to make sure everything is working properly.
Monitoring programs won't work until it's done.
To load everything that is needed, execute the commands below...
#----cut here----
# I2C adapter drivers
modprobe i2c-i801
# I2C chip drivers
modprobe eeprom
# sleep 2 # optional
/usr/bin/sensors -s # recommended
#----end cut here----
Do you want to overwrite /etc/conf.d/lm_sensors? Enter s to specify other file name?
(yes/NO/s): yes
Done.
lenovo ~ # modprobe i2c-i801
lenovo ~ # modprobe eeprom
lenovo ~ # lsmod
Module Size Used by
eeprom 5648 0
i2c_dev 7684 0
i2c_i801 9484 0
i2c_core 17664 3 eeprom,i2c_dev,i2c_i801
arc4 1920 1
ieee80211_crypt_wep 4480 1
ipw3945 123296 1
ieee80211 31816 1 ipw3945
ieee80211_crypt 5120 2 ieee80211_crypt_wep,ieee80211
snd_hda_intel 13328 1
snd_hda_codec 113536 1 snd_hda_intel
lenovo ~ # sensors
No sensors found!
lenovo ~ #
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