[lm-sensors] Incorrect Temperature Readings

Scott Ondercin sgo542 at hotmail.com
Mon Mar 26 12:59:56 PDT 2012


-I've been running the computer for over an hour currently and it feels perfectly fine.  Even the hard drive feels only mildly warm.  Nonetheless, I'm getting 96C readings for my PCI Adapter.

Is there a way to modify my /etc/sensors.conf file to change the input levels or high/crit temps for the adapter?  I may not be looking properly, but I can't find its chip name.

Also, is there a way to run "module-init-tools" without getting "stop/waiting"?

> Date: Sun, 25 Mar 2012 08:23:12 -0700
> From: guenter.roeck at ericsson.com
> To: sgo542 at hotmail.com
> CC: lm-sensors at lm-sensors.org; airlied at linux.ie; dri-devel at lists.freedesktop.org
> Subject: Re: [lm-sensors] Incorrect Temperature Readings
> 
> On Sun, Mar 25, 2012 at 07:49:46AM -0400, Scott Ondercin wrote:
> > So, once upon a time, my computer worked fine.  I have a Dell Inspiron 1420,
> > which has a good ventilation system and usually runs quite cool.  A few months
> > ago my fan broke and I had to have it replaced.  The new one, however, runs all
> > the time and is very loud.
> > 
> > My lm-sensors is screwed up, and scanning various threads I can't seem to find
> > a problem like mine.  So, here is what running sensors gets me:
> > 
> > sgo542 at NostalgiaforInfinity:~$ sensors
> > acpitz-virtual-0
> > Adapter: Virtual device
> > temp1:        +32.5 C  (crit = +87.0 C)
> > 
> > coretemp-isa-0000
> > Adapter: ISA adapter
> > Core 0:       +30.0 C  (high = +85.0 C, crit = +85.0 C)
> > Core 1:       +33.0 C  (high = +85.0 C, crit = +85.0 C)
> > 
> > nouveau-pci-0100
> > Adapter: PCI adapter
> > temp1:        +97.0 C  (high = +100.0 C, crit = +110.0 C)
> > 
> Scott,
> 
> That temperature reading is from your graphics adapter. No idea how it comes
> that it reports such a high temperature. Does it have a fan, and are you sure
> it is working ?
> 
> Copying the driver maintainer and the drm mailing list. Maybe someone there
> has an idea.
> 
> Guenter
> 
> > I've been casually browsing FireFox for a half hour and that is what it gives
> > me.  Now, I can sit this computer comfortably in my lap.  That 97C temperature
> > is clearly off, almost like it's reading in Farenheit but forgetting to convert
> > it to Celsius.  Normally it just makes my fan run all the time, but now that
> > spring has come, it gets hotter faster.  A few days ago I could only run it for
> > 20-30 minutes before the reading hit 105C and the automatic emergency shut-down
> > kicked in.  Obviously, this needs to be fixed before sumer strikes.
> > 
> > For reference, this is what I get from sensors-detect:
> > 
> > sgo542 at NostalgiaforInfinity:~$ sudo sensors-detect
> > # sensors-detect revision 5946 (2011-03-23 11:54:44 +0100)
> > # System: Dell Inc. Inspiron 1420 (laptop)
> > # Board: Dell Inc. 0JX269
> > 
> > This program will help you determine which kernel modules you need
> > to load to use lm_sensors most effectively. It is generally safe
> > and recommended to accept the default answers to all questions,
> > unless you know what you're doing.
> > 
> > Some south bridges, CPUs or memory controllers contain embedded sensors.
> > Do you want to scan for them? This is totally safe. (YES/no): y
> > Module cpuid loaded successfully.
> > Silicon Integrated Systems SIS5595...                       No
> > VIA VT82C686 Integrated Sensors...                          No
> > VIA VT8231 Integrated Sensors...                            No
> > AMD K8 thermal sensors...                                   No
> > AMD Family 10h thermal sensors...                           No
> > AMD Family 11h thermal sensors...                           No
> > AMD Family 12h and 14h thermal sensors...                   No
> > Intel digital thermal sensor...                             Success!
> >     (driver `coretemp')
> > Intel AMB FB-DIMM thermal sensor...                         No
> > VIA C7 thermal sensor...                                    No
> > VIA Nano thermal sensor...                                  No
> > 
> > Some Super I/O chips contain embedded sensors. We have to write to
> > standard I/O ports to probe them. This is usually safe.
> > Do you want to scan for Super I/O sensors? (YES/no): y
> > Probing for Super-I/O at 0x2e/0x2f
> > Trying family `National Semiconductor'...                   No
> > Trying family `SMSC'...                                     Yes
> > Found unknown chip with ID 0x3201
> > Probing for Super-I/O at 0x4e/0x4f
> > Trying family `National Semiconductor'...                   No
> > Trying family `SMSC'...                                     No
> > Trying family `VIA/Winbond/Nuvoton/Fintek'...               No
> > Trying family `ITE'...                                      No
> > 
> > Some hardware monitoring chips are accessible through the ISA I/O ports.
> > We have to write to arbitrary I/O ports to probe them. This is usually
> > safe though. Yes, you do have ISA I/O ports even if you do not have any
> > ISA slots! Do you want to scan the ISA I/O ports? (YES/no): y
> > Probing for `National Semiconductor LM78' at 0x290...       No
> > Probing for `National Semiconductor LM79' at 0x290...       No
> > Probing for `Winbond W83781D' at 0x290...                   No
> > Probing for `Winbond W83782D' at 0x290...                   No
> > 
> > Lastly, we can probe the I2C/SMBus adapters for connected hardware
> > monitoring devices. This is the most risky part, and while it works
> > reasonably well on most systems, it has been reported to cause trouble
> > on some systems.
> > Do you want to probe the I2C/SMBus adapters now? (YES/no): y
> > Using driver `i2c-i801' for device 0000:00:1f.3: Intel 82801H ICH8
> > Module i2c-dev loaded successfully.
> > 
> > Next adapter: nouveau-0000:01:00.0-2 (i2c-0)
> > Do you want to scan it? (YES/no/selectively): y
> > Client found at address 0x50
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > Probing for `EDID EEPROM'...                                Yes
> >     (confidence 8, not a hardware monitoring chip)
> > Client found at address 0x51
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > Client found at address 0x52
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > Client found at address 0x53
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > 
> > Next adapter: nouveau-0000:01:00.0-0 (i2c-1)
> > Do you want to scan it? (YES/no/selectively): y
> > 
> > Next adapter: SMBus I801 adapter at 10c0 (i2c-2)
> > Do you want to scan it? (YES/no/selectively): y
> > Client found at address 0x50
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 Yes
> >     (confidence 8, not a hardware monitoring chip)
> > Probing for `EDID EEPROM'...                                No
> > Client found at address 0x52
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 Yes
> >     (confidence 8, not a hardware monitoring chip)
> > 
> > Now follows a summary of the probes I have just done.
> > Just press ENTER to continue:
> > 
> > Driver `coretemp':
> >   * Chip `Intel digital thermal sensor' (confidence: 9)
> > 
> > To load everything that is needed, add this to /etc/modules:
> > #----cut here----
> > # Chip drivers
> > coretemp
> > #----cut here----
> > If you have some drivers built into your kernel, the list above will
> > contain too many modules. Skip the appropriate ones!
> > 
> > Do you want to add these lines automatically to /etc/modules? (yes/NO)y
> > Successful!
> > 
> > Monitoring programs won't work until the needed modules are
> > loaded. You may want to run 'service module-init-tools start'
> > to load them.
> > 
> > Unloading i2c-dev... OK
> > Unloading cpuid... OK
> > 
> > sgo542 at NostalgiaforInfinity:~$ sudo service module-init-tools start
> > module-init-tools stop/waiting
> > sgo542 at NostalgiaforInfinity:~$ sensors
> > acpitz-virtual-0
> > Adapter: Virtual device
> > temp1:        +32.5 C  (crit = +87.0 C)
> > 
> > coretemp-isa-0000
> > Adapter: ISA adapter
> > Core 0:       +31.0 C  (high = +85.0 C, crit = +85.0 C)
> > Core 1:       +33.0 C  (high = +85.0 C, crit = +85.0 C)
> > 
> > nouveau-pci-0100
> > Adapter: PCI adapter
> > temp1:        +97.0 C  (high = +100.0 C, crit = +110.0 C)
> > 
> > sgo542 at NostalgiaforInfinity:~$ sudo modprobe coretemp
> > sgo542 at NostalgiaforInfinity:~$ sensors
> > acpitz-virtual-0
> > Adapter: Virtual device
> > temp1:        +32.5 C  (crit = +87.0 C)
> > 
> > coretemp-isa-0000
> > Adapter: ISA adapter
> > Core 0:       +30.0 C  (high = +85.0 C, crit = +85.0 C)
> > Core 1:       +33.0 C  (high = +85.0 C, crit = +85.0 C)
> > 
> > nouveau-pci-0100
> > Adapter: PCI adapter
> > temp1:        +97.0 C  (high = +100.0 C, crit = +110.0 C)
> > 
> > sgo542 at NostalgiaforInfinity:~$ sensors
> > acpitz-virtual-0
> > Adapter: Virtual device
> > temp1:        +33.5 C  (crit = +87.0 C)
> > 
> > coretemp-isa-0000
> > Adapter: ISA adapter
> > Core 0:       +31.0 C  (high = +85.0 C, crit = +85.0 C)
> > Core 1:       +33.0 C  (high = +85.0 C, crit = +85.0 C)
> > 
> > nouveau-pci-0100
> > Adapter: PCI adapter
> > temp1:        +97.0 C  (high = +100.0 C, crit = +110.0 C)
> > 
> > sgo542 at NostalgiaforInfinity:~$ sensors-detect
> > You need to be root to run this script.
> > sgo542 at NostalgiaforInfinity:~$ sudo sensors-detect
> > # sensors-detect revision 5946 (2011-03-23 11:54:44 +0100)
> > # System: Dell Inc. Inspiron 1420 (laptop)
> > # Board: Dell Inc. 0JX269
> > 
> > This program will help you determine which kernel modules you need
> > to load to use lm_sensors most effectively. It is generally safe
> > and recommended to accept the default answers to all questions,
> > unless you know what you're doing.
> > 
> > Some south bridges, CPUs or memory controllers contain embedded sensors.
> > Do you want to scan for them? This is totally safe. (YES/no): y
> > Module cpuid loaded successfully.
> > Silicon Integrated Systems SIS5595...                       No
> > VIA VT82C686 Integrated Sensors...                          No
> > VIA VT8231 Integrated Sensors...                            No
> > AMD K8 thermal sensors...                                   No
> > AMD Family 10h thermal sensors...                           No
> > AMD Family 11h thermal sensors...                           No
> > AMD Family 12h and 14h thermal sensors...                   No
> > Intel digital thermal sensor...                             Success!
> >     (driver `coretemp')
> > Intel AMB FB-DIMM thermal sensor...                         No
> > VIA C7 thermal sensor...                                    No
> > VIA Nano thermal sensor...                                  No
> > 
> > Some Super I/O chips contain embedded sensors. We have to write to
> > standard I/O ports to probe them. This is usually safe.
> > Do you want to scan for Super I/O sensors? (YES/no): y
> > Probing for Super-I/O at 0x2e/0x2f
> > Trying family `National Semiconductor'...                   No
> > Trying family `SMSC'...                                     Yes
> > Found unknown chip with ID 0x3201
> > Probing for Super-I/O at 0x4e/0x4f
> > Trying family `National Semiconductor'...                   No
> > Trying family `SMSC'...                                     No
> > Trying family `VIA/Winbond/Nuvoton/Fintek'...               No
> > Trying family `ITE'...                                      No
> > 
> > Some hardware monitoring chips are accessible through the ISA I/O ports.
> > We have to write to arbitrary I/O ports to probe them. This is usually
> > safe though. Yes, you do have ISA I/O ports even if you do not have any
> > ISA slots! Do you want to scan the ISA I/O ports? (YES/no): y
> > Probing for `National Semiconductor LM78' at 0x290...       No
> > Probing for `National Semiconductor LM79' at 0x290...       No
> > Probing for `Winbond W83781D' at 0x290...                   No
> > Probing for `Winbond W83782D' at 0x290...                   No
> > 
> > Lastly, we can probe the I2C/SMBus adapters for connected hardware
> > monitoring devices. This is the most risky part, and while it works
> > reasonably well on most systems, it has been reported to cause trouble
> > on some systems.
> > Do you want to probe the I2C/SMBus adapters now? (YES/no): y
> > Using driver `i2c-i801' for device 0000:00:1f.3: Intel 82801H ICH8
> > Module i2c-dev loaded successfully.
> > 
> > Next adapter: nouveau-0000:01:00.0-2 (i2c-0)
> > Do you want to scan it? (YES/no/selectively): y
> > Client found at address 0x50
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > Probing for `EDID EEPROM'...                                Yes
> >     (confidence 8, not a hardware monitoring chip)
> > Client found at address 0x51
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > Client found at address 0x52
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > Client found at address 0x53
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 No
> > 
> > Next adapter: nouveau-0000:01:00.0-0 (i2c-1)
> > Do you want to scan it? (YES/no/selectively): y
> > 
> > Next adapter: SMBus I801 adapter at 10c0 (i2c-2)
> > Do you want to scan it? (YES/no/selectively): y
> > Client found at address 0x50
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 Yes
> >     (confidence 8, not a hardware monitoring chip)
> > Probing for `EDID EEPROM'...                                No
> > Client found at address 0x52
> > Probing for `Analog Devices ADM1033'...                     No
> > Probing for `Analog Devices ADM1034'...                     No
> > Probing for `SPD EEPROM'...                                 Yes
> >     (confidence 8, not a hardware monitoring chip)
> > 
> > Now follows a summary of the probes I have just done.
> > Just press ENTER to continue:
> > 
> > Driver `coretemp':
> >   * Chip `Intel digital thermal sensor' (confidence: 9)
> > 
> > To load everything that is needed, add this to /etc/modules:
> > #----cut here----
> > # Chip drivers
> > coretemp
> > #----cut here----
> > If you have some drivers built into your kernel, the list above will
> > contain too many modules. Skip the appropriate ones!
> > 
> > Do you want to add these lines automatically to /etc/modules? (yes/NO)y
> > Successful!
> > 
> > Monitoring programs won't work until the needed modules are
> > loaded. You may want to run 'service module-init-tools start'
> > to load them.
> > 
> > Unloading i2c-dev... OK
> > Unloading cpuid... OK
> > 
> > And when I try to run module-init-tools, I get:
> > 
> > sgo542 at NostalgiaforInfinity:~$ sudo service module-init-tools start
> > module-init-tools stop/waiting
> > 
> > I've heard I might be able to fix this by tweaking the /etc/sensors.conf file,
> > but I'm unsure how to even start with that.  I am moderately experiences with
> > Linux, but by no means an expert.  Any help would be appreciated, before it
> > gets hot outside and my computer becomes completely unusable.
> 
> > _______________________________________________
> > lm-sensors mailing list
> > lm-sensors at lm-sensors.org
> > http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
> 
 		 	   		  
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