From mboxrd@z Thu Jan 1 00:00:00 1970 From: salahx@yahoo.com (Salah Coronya) Date: Thu, 30 Jun 2005 23:40:01 +0000 Subject: [lm-sensors] PnP and W83627HF/W83781D IO port conflict at Message-Id: <42C46675.4050105@yahoo.com> List-Id: References: <42C3900F.9090108@coronya.com> In-Reply-To: <42C3900F.9090108@coronya.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lm-sensors@vger.kernel.org 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@14 > > 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!