Thanks for all your help, After talking to someone at dell they said the fan control is hardware based and software can't be used to manually set it or get the temperature reading. So after that I took the computer apart and cleaned the cooling equipment and the fans finally went back to a normal speed and a sane sound. Thanks for everything, John On 8/12/06, Jean Delvare <khali at linux-fr.org> wrote: > Hi John, > > > i2cdetect -l : > > i2c-3 smbus SMBus I801 adapter at ccf0 Non-I2C SMBus adapter > > i2c-2 i2c ivtv i2c driver #1 Algorithm unavailable > > i2c-1 i2c ivtv i2c driver #0 Algorithm unavailable > > i2c-0 smbus SMBus stub driver Non-I2C SMBus adapter > > Ah. The "SMBus stub driver" is a test driver solely meant to debug > SMBus chip drivers. This is what confused sensors-detect. Why did you > load that driver? > > > i2cdetect 0 : > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f > > 10: 10 11 12 13 14 15 16 17 18 19 1a UU 1c 1d 1e UU > > 20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f > > 30: 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f > > 40: 40 41 42 43 44 45 46 47 UU UU UU UU 4c 4d 4e 4f > > 50: UU UU UU UU UU UU UU UU 58 59 5a 5b 5c 5d 5e 5f > > 60: 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f > > 70: 70 71 72 73 74 75 76 77 > > The test driver (i2c-stub) responds to all addresses. It's confusing > and you don't need it! Unload i2c-stub. > > > i2cdetect 1 : > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: XX XX XX XX XX XX XX XX XX XX XX XX XX > > 10: XX XX XX XX XX XX XX XX XX XX XX UU XX XX XX XX > > 20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 40: XX XX XX UU UU XX XX XX XX XX XX XX XX XX XX XX > > 50: UU XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 60: UU UU XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 70: XX XX XX XX XX XX XX XX > > > > i2cdetect 2 : > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: XX XX XX XX XX XX XX XX XX XX XX XX XX > > 10: XX XX XX XX XX XX XX XX XX XX XX UU XX XX XX XX > > 20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 40: XX XX XX UU UU XX XX XX XX XX XX XX XX XX XX XX > > 50: UU XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 60: XX UU XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 70: XX XX XX XX XX XX XX XX > > Some media/video adapter you must have in that machine. We don't really > care about that. > > > i2cdetect 3 : > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: XX XX XX XX XX XX XX XX XX XX XX XX XX > > 10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 30: 30 31 XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 40: XX XX XX XX 44 XX XX XX XX XX XX XX XX XX XX XX > > 50: UU UU XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 60: XX 61 XX XX 64 XX XX XX XX XX XX XX XX XX XX XX > > 70: XX XX XX XX XX XX XX XX > > Your mainboard SMBus. I see two memory module EEPROMs (SPD), unknown > chips at 0x61 and 0x64, but no hardware monitoring chips. > > > A small snibit of dmesg : > > i2c_adapter i2c-0: smbus word data - addr 0x48, read 0x0000 at 0x02. > > i2c_adapter i2c-0: smbus word data - addr 0x48, read 0x0000 at 0x03. > > i2c_adapter i2c-0: smbus word data - addr 0x48, read 0x0000 at 0x04. > > i2c_adapter i2c-0: smbus word data - addr 0x48, read 0x0000 at 0x05. > > i2c_adapter i2c-0: smbus word data - addr 0x49, read 0x0000 at 0x00. > > i2c_adapter i2c-0: smbus word data - addr 0x49, read 0x0000 at 0x02. > > i2c_adapter i2c-0: smbus word data - addr 0x49, read 0x0000 at 0x03. > > i2c_adapter i2c-0: smbus word data - addr 0x49, read 0x0000 at 0x04. > > i2c_adapter i2c-0: smbus word data - addr 0x49, read 0x0000 at 0x05. > > i2c_adapter i2c-0: smbus word data - addr 0x4a, read 0x0000 at 0x00. > > i2c_adapter i2c-0: smbus word data - addr 0x4a, read 0x0000 at 0x02. > > i2c_adapter i2c-0: smbus word data - addr 0x4a, read 0x0000 at 0x03. > > i2c_adapter i2c-0: smbus word data - addr 0x4a, read 0x0000 at 0x04. > > i2c_adapter i2c-0: smbus word data - addr 0x4a, read 0x0000 at 0x05. > > i2c_adapter i2c-0: smbus word data - addr 0x4b, read 0x0000 at 0x00. > > i2c_adapter i2c-0: smbus word data - addr 0x4b, read 0x0000 at 0x02. > > i2c_adapter i2c-0: smbus word data - addr 0x4b, read 0x0000 at 0x03. > > i2c_adapter i2c-0: smbus word data - addr 0x4b, read 0x0000 at 0x04. > > i2c_adapter i2c-0: smbus word data - addr 0x4b, read 0x0000 at 0x05. > > That's the i2c-stub driver helping you test and debug your code. As you > are only trying to get lm_sensors to run, it is completely irrelevant. > Just unload i2c-stub. > > > The Dell Dimension 8250 is a desktop. I can't find any information > > about it so I'm not sure it has a thermal sensor or not. Is it > > possible to control the fan without it? > > You can control the fan without a thermal sensor, these are two > separate things. However, you need a chip on your motherboard in either > case. You don't seem to have such a chip on your SMBus. Fan speed > control functions are sometimes integrated in Super-I/O chips (last > part of sensors-detect). > > You may search for hardware monitoring information in the BIOS setup > screen. If you can't find any, it's usually a good indication that the > board doesn't have the feature. But better ask Dell for details if you > can. > > -- > Jean Delvare >
