Jean Delvare wrote: > Hi Salah, > > >>My motherboard, an ASUS P4B-LX has a W83627HF chip on it (as detected >>by sensors-detect) that has the sensor reading on it,and more >>importantly, allow control of the fan via PWM. >> >>However, the W83781D module does not work - it loads, but nothing >>happens. When i2c debugging message are enabled, it print the error >>message "Request of region 0x290-0x297 for w83781d failed", although >>it still loads. In >>/proc/ioports it shows "pnp 00:0d" at port 0x0295-0x0296 both with and >>without the module loaded. >> >>Forcing it gives the same error and results. Passing >>pnp_reserve_io=0x0290,8 in the command line has no effect, and no >>error message or acknowlegement about the parameter either, even with >>PNP Debug output. >> >>If PNP is disabled in the kernel, I can access the sensor, get the >>sensors readings, and control the fan. > > > The culprit isn't PNP itself but PNPACPI. The problem is known, see: > http://bugzilla.kernel.org/show_bug.cgi?id=4014 > > Feel free to add a "me too" there so that the person responsible for it > knows that it does annoy people. Not sure there is anything we can do > though, as this is a BIOS bug. Ideally the motherboard manufacturer > should release an updated BIOS. > Ok, will do. For now, I've disabled PNPACPI and switched to PNPBIOS to workaround the problem in the meantime. Thanks!
