pwmconfig fails with the message /usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed Looking at the pwmconfig shell-script, the error occurs because there are no pwm* files in the relevant place: ~> ls /sys/class/hwmon/hwmon*/device/ /sys/class/hwmon/hwmon1/device/: driver hwmon modalias name power subsystem temp1_crit temp1_crit_alarm temp1_input temp1_label uevent /sys/class/hwmon/hwmon2/device/: driver hwmon modalias name power subsystem temp1_crit temp1_crit_alarm temp1_input temp1_label uevent However, despite a few hours googling, I am unclear whether there is any hope that I can get this working, and if so what to do next. This is a Fujitsu-Siemens Lifebook S Series laptop which has the an Intel Core Duo processor with Intel 945GM chipset, and is running Ubuntu Intrepid (fully updated). I've looked at http://www.lm-sensors.org/wiki/Devices, but don't fully understand the information there. Under SENSOR CHIP DRIVERS there is this entry Intel Core, Core 2 yes coretemp 2.6.22 (2007-03-25) Integrated sensor in CPU. Driver contributed by Rudolf Marek. Is this good news, or is it saying that there's just temperature stuff but no fan control? and under I2C/SMBUS BUS DRIVERS there are several entries for Intel none of which obviously correspond to my hardware. I've run sensors-detect which results in (full output at bottom) Driver `smartbatt' (should be inserted): Detects correctly: * Bus `SMBus I801 adapter at 18e0' Busdriver `i2c-i801', I2C address 0x0b Chip `Smart Battery' (confidence: 5) Driver `coretemp' (should be inserted): Detects correctly: * Chip `Intel Core family thermal sensor' (confidence: 9) This coretemp module is loaded and is providing temperature readings. I don't know if it has anything to do with fan control. Running sensors gives ~> sensors acpitz-virtual-0 Adapter: Virtual device temp1: +26.8??C (crit = +100.0??C) temp2: +26.8??C (crit = +100.0??C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +43.0??C (crit = +100.0??C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +43.0??C (crit = +100.0??C) (I have not observed the first two temperatures be anything other than 26.8). I'd like to be able to modify my fan behaviour but don't know what to do in order that pwmconfig runs. Thanks very much for any help. Full output from sensors-detect follows. Dan Next adapter: SMBus I801 adapter at 18e0 (i2c-0) Do you want to scan it? (YES/no/selectively): Client found at address 0x0b Probing for `Smart Battery'... Success! (confidence 5, driver `smartbatt') Client found at address 0x19 Probing for `Analog Devices ADM1021'... No Probing for `Analog Devices ADM1021A/ADM1023'... No Probing for `Maxim MAX1617'... No Probing for `Maxim MAX1617A'... No Probing for `Maxim MAX1668'... No Probing for `Maxim MAX1805'... No Probing for `Maxim MAX1989'... No Probing for `Maxim MAX6655/MAX6656'... No Probing for `TI THMC10'... No Probing for `National Semiconductor LM84'... No Probing for `Genesys Logic GL523SM'... No Probing for `Onsemi MC1066'... No Probing for `Maxim MAX1619'... No Probing for `National Semiconductor LM82/LM83'... No Probing for `Maxim MAX6680/MAX6681'... No Some chips are also 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): Probing for `National Semiconductor LM78' at 0x290... No Probing for `National Semiconductor LM78-J' 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 Probing for `IPMI BMC KCS' at 0xca0... No Probing for `IPMI BMC SMIC' at 0xca8... No Some Super I/O chips may also contain 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): Probing for Super-I/O at 0x2e/0x2f Trying family `National Semiconductor'... No Trying family `SMSC'... Yes Found unknown non-standard chip with ID 0x7a Probing for Super-I/O at 0x4e/0x4f Trying family `National Semiconductor'... No Trying family `SMSC'... No Trying family `VIA/Winbond/Fintek'... No Trying family `ITE'... No Some south bridges, CPUs or memory controllers may also contain embedded sensors. Do you want to scan for them? (YES/no): Silicon Integrated Systems SIS5595... No VIA VT82C686 Integrated Sensors... No VIA VT8231 Integrated Sensors... No AMD K8 thermal sensors... No AMD K10 thermal sensors... No Intel Core family thermal sensor... Success! (driver `coretemp') Intel AMB FB-DIMM thermal sensor... No Now follows a summary of the probes I have just done. Just press ENTER to continue: Driver `smartbatt' (should be inserted): Detects correctly: * Bus `SMBus I801 adapter at 18e0' Busdriver `i2c-i801', I2C address 0x0b Chip `Smart Battery' (confidence: 5) Driver `coretemp' (should be inserted): Detects correctly: * Chip `Intel Core family thermal sensor' (confidence: 9) I will now generate the commands needed to load the required modules. Just press ENTER to continue: To load everything that is needed, add this to /etc/modules: #----cut here---- # I2C adapter drivers i2c-i801 # Chip drivers # Warning: the required module smartbatt is not currently installed # on your system. For status of 2.6 kernel ports check # http://www.lm-sensors.org/wiki/Devices. If driver is built # into the kernel, or unavailable, comment out the following line. smartbatt coretemp #----cut here---- -- http://www.stats.ox.ac.uk/~davison