i've applied your patch. So far it works! Thanx again! > > David Coppa already sent you a patch but probably I should clarify > some things more. > > Many modern ThinkPad allow to either delegate management of fan speed > to BIOS or to set it manually. OpenBSD point of view is that manual > setting fans from userland is a BAD idea. So what's the patch > mentioned does is taking management from BIOS to OS. > > BIOS does a good thing at managing fan speed until it gets too hot. > But when overheating happens, there are two complimentary ways to > handle the situation: a) raise the fan speed; b) lower CPU speed. > > (a) is what OpenBSD with the patch mentioned starts to do. The fan is > put in so called "disengaged" mode, fan goes to 6000+ RPM and became > spinning as if it's trying to make your laptop flying. This probably > could damage the fan, but mine is still there for about two years. > > The same functionality exists in the Linux kernel but the code is > (was? Didn't check for a year) disabled; I've actually picked up > register addresses from there. > > (b) is what Windows does. Your videoplayer will start dropping frames > but it'll be more or less quiet around. > > Probably some overheating logic could be added to apmd(8), but this > daemon already wants too many options and thus probably needs > refactoring. Or there could be some default scripts for sensorsd(8) > written... > > -- > WBR, > Vadim Zhukov >
-- Stay away from flying saucers today. [demime 1.01d removed an attachment of type application/pgp-signature which had a name of signature.asc]
