On Fri, 2010-11-05 at 00:06 +0800, Maciej Rutecki wrote: > 1. > Last known good kernel: 2.6.36 > Bad kernel: 2.6.37-rc1 > =============================== > > 2. Problem: > When I resume computer from s2ram/s2disk and current CPU temp is below lowest > trip point, and -- from unknown reason -- fan start in maximum speed it > doesn't turn off (it should). > could you please attach the output of "grep . /sys/class/thermal/*/*" when this happens? thanks, rui > It doesn't happen always but only when fan starts work and any of trip points > aren't exceed. It seems that system only check temperature when exceed trip > point. > =============================== > > 3. /sys/cass/thermal/ info: > > I have: > maciek@gumis:/sys/class/thermal$ ls > cooling_device0 cooling_device2 cooling_device4 cooling_device6 > thermal_zone1 thermal_zone3 > cooling_device1 cooling_device3 cooling_device5 thermal_zone0 > thermal_zone2 thermal_zone4 > > maciek@gumis:/sys/class/thermal$ cat cooling_device*/type > LCD > Processor > Processor > Fan > Fan > Fan > Fan > > =============================== > > Colling device from 3 to 6 are inform what is current fan speed, for example: > cooling_device3 = 0 > cooling_device4 = 0 > cooling_device5 = 0 > cooling_device6 = 0 > Means that fan is off. > > cooling_device3 = 0 > cooling_device4 = 0 > cooling_device5 = 0 > cooling_device6 = 1 > Means fan works on 40% of full speed (1st trip point is exceed). > > cooling_device3 = 1 > cooling_device4 = 1 > cooling_device5 = 1 > cooling_device6 = 1 > Means fan works on full speed (all (4) trip points is exceed). > =============================== > > 5. State when fan works on full speed after resume: > maciek@gumis:/sys/class/thermal$ cat cooling_device*/cur_state > 0 > 0 > 0 > 1 > 1 > 1 > 1 > (Runs on full speed) > > maciek@gumis:/sys/class/thermal$ cat thermal_zone0/trip_point_* > 256000 > critical > 78000 > active > 70000 > active > 60000 > active > 50000 > active > > (It's OK for current CPU temp) > > "sensors" command shows: > maciek@gumis:/sys/class/thermal$ sensors > acpitz-virtual-0 > Adapter: Virtual device > temp1: +37.0ÂC (crit = +256.0ÂC) > temp2: +42.0ÂC (crit = +90.0ÂC) > temp3: +33.0ÂC (crit = +105.0ÂC) > temp4: +20.0ÂC (crit = +90.0ÂC) > temp5: +100.0ÂC (crit = +110.0ÂC) > > "temp1" in this model of HP notebook is only for debug purposes (I think). > "temp2" shows CPU temp (fan speed depends on it) > "temp5" shows fan speed in % of maximum speed. > =============================== > > 6. I run this command, to "hot" the processor: > "while true; do echo -n; done" > and cancel it, when I see, that first trip point was exceed, and fan starts > working on lower speed. > =============================== > > 7. When it done I saw: > maciek@gumis:/sys/class/thermal$ cat cooling_device*/cur_state > 0 > 0 > 0 > 0 > 0 > 0 > 1 > > Fan works on 40% of full speed. It's OK. > > maciek@gumis:/sys/class/thermal$ cat thermal_zone0/trip_point_* > 256000 > critical > 78000 > active > 70000 > active > 60000 > active > 45000 > active > > Last trip point was changed from 50000 to 45000 because trip point was exceed > (it's OK, fan stops working below 45*C or starts working on 60% speed, above > 60*C). > > "sensors" show: > maciek@gumis:/sys/class/thermal$ sensors > acpitz-virtual-0 > Adapter: Virtual device > temp1: +50.0ÂC (crit = +256.0ÂC) > temp2: +48.0ÂC (crit = +90.0ÂC) > temp3: +34.0ÂC (crit = +105.0ÂC) > temp4: +20.0ÂC (crit = +90.0ÂC) > temp5: +40.0ÂC (crit = +110.0ÂC) > =============================== > > Dmesg: > http://unixy.pl/maciek/download/kernel/2.6.37-rc1/gumis/dmesg-2.6.37-rc1.txt > > acpidump: > http://unixy.pl/maciek/download/kernel/2.6.37-rc1/gumis/acpidump.dat > > Config: > http://unixy.pl/maciek/download/kernel/2.6.37-rc1/gumis/config-2.6.37-rc1 > > Regards -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
