Hello, > But now that i want to jump to a newer distro, none of them is able to detect > this smbus in spite of the quirks (see above) that is present in the kernel : > $ cat /usr/src/linux/drivers/pci/quirks.c |grep -i w1 > case 0x184b: /* W1N notebook */ > The same lack occured occured on ubuntu 6.10 , suse 10.1, mandriva 2007 and > suse 10.2 with recent kernels ranging from 2.6.16 to 2.6.18 . No smbus is > appears on the lspci for any of these distro. > I reported this problem here : > http://www.suseforums.net/index.php?showtopic=25980 > http://qa.mandriva.com/show_bug.cgi?id=25281 > But i had no answers. Answer is simple. There were some problems with suspend resume, when the smbus was enabled. (from 2.6.17-2.6.19) It is fixed in 2.6.20. You need to disable the ACPI sleep support to re-enable the quirk. I guess it is not what you want. However you are lucky, I developed yesterday a simple bash script which will re-enable the bus for you. Check it here: http://www.lm-sensors.org/browser/lm-sensors/trunk/prog/hotplug/unhide_ICH_SMBus?format=raw download, run as root. You are done. Now you can access the bus again. > The sensor monitor and fan speed control is a very interesting feature on this > laptop for battery saving reasons. > I'd be really glad if someone could help . > Or please someone point me to a better place to report this problem. Please can you attach the DSDT table to your mail? cat /proc/acpi/dsdt > /tmp/dsdt.bin Rudolf
