https://bugzilla.novell.com/show_bug.cgi?id=807312 https://bugzilla.novell.com/show_bug.cgi?id=807312#c22 --- Comment #22 from Rainer Klier <rainer.klier@gmx.at> 2013-05-06 12:07:23 UTC --- (In reply to comment #21)
Question #1: do you hear the fan spin when you force-enable cooling_device2?
when i do this, the first thing, i notice is the raise of the temp of thermal_zone3 from 30°C up to 100°C. (and i didn't let it go higher...) "/sys/devices/virtual/thermalthermal_zone3" corresponds to "temp4" from the output of sensors. the contents of /sys/devices/virtual/thermal/thermal_zone3/device/path is: \_TZ_.TZ5_ /sys/devices/virtual/thermal/thermal_zone3/device/modalias: acpi:LNXTHERM: /sys/devices/virtual/thermal/thermal_zone3/device/hid: LNXTHERM /sys/devices/virtual/thermal/thermal_zone3/trip_point_0_temp: 110000 /sys/devices/virtual/thermal/thermal_zone3/trip_point_0_type: critical immediately after the temp it raising, i hear the fan spin up. when i put "0" to /sys/devices/virtual/thermal/cooling_device2/cur_state the temp is droping and shortly after this, the fan stops. so, it seenms, that changing the value of /sys/devices/virtual/thermal/cooling_device2/cur_state doesn't trigger the fan directly, but raises somehow the temp of /sys/devices/virtual/thermal/thermal_zone3, which triggers the fan to spin up. at least it looks like this.
Question #2: does it prevent the spurious reboot?
i really don't know. the spurious reboot didn't happen since i installed /etc/sysconfig/lm_sensors and /usr/lib/systemd/system/lm_sensors.service. i have the KDE4 hardware monitoring widget running, which shows the temps of all 6 thermal_zones (called temp1 - temp6 in the widget). and i watch the current values the whole time to detect the temp, where it reboots, but it didn't happen since then. but i noticed, that forcing the fan to spin with the above methode (echo "1" > .....cooling_device2/cur_state) lowers the temp of thermal_zone5, starts the fan, BUT raises the temp of thermal_zone3. very strange. and as you can read in https://bugzilla.redhat.com/show_bug.cgi?id=895276 similar things happen with other HP notebooks from other people.... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.