On Sun, 12 Dec 2010 22:18:44 -0600 (CST), Jeff Rickman wrote: > I rechecked my "/etc/sensors.d/local.conf" file. There are no labels, > compute lines, or set lines applied to "in7" for this chip. After a system > reboot, then issuing a "sensors -s" and waiting a while, no ALARM flag is > seen for "in7". My "sensors3.conf" file does not have any changes or even > references to "in7" in the "dme1737", "sch311x-", and "sch5027-*" > sections. Just trying to be thorough in checking.... Successive readings > of "sensors" shows the "max" value for "in7" changing from 1.50V to 0.25V; > the "min" value never changes from 1.99V. > > Now I add "set" lines for "in7": > set in7_min 1.5 * 0.90 > set in7_max 1.5 * 1.10 > > After a "sensors -s", "sensors" very briefly reports "min" and "max" > values set to 1.35 and 1.65 respectively. Then I repeat "sensors" a few > more times to see these values change back to 1.99 and anything from 0.0 > to 1.0 respectively. Very odd indeed. Hmm. So the limit registers aren't behaving as they should. This suggests that Juerg's patch is not correct. Juerg, can you please double-check what the datasheet says for registers 0x9f and 0xa0? Could these be read-only in certain conditions, maybe? And are they really in7 limits to start with? The value of 0xa0 changing on its own doesn't make it look so. Anyway, the value of 0.72 V doesn't make much sense if the line is supposed to monitor +1.5, as it could do so without scaling. Seeing how odd the whole system seems to be, I would no longer be surprised if they really connected +1.5V to in4... And I take not to avoid Acer hardware. Jeff, I am afraid that we won't be able to go much farther with this. The only way to get proper voltage handling would be to ask Acer for the pin wiring of the voltage monitoring inputs together with the resistor values they used for scaling. Without that we can only try and guess things, and get them wrong. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
