Messages in this thread | | | From | Sascha Wilde <> | Subject | Re: regression in linux 3.7 - fan speed at 100% after suspend/resume at 100% | Date | Sun, 10 Mar 2013 16:47:00 +0100 |
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Sascha Wilde <wilde@sha-bang.de> wrote: [...] > [2] FWIW², I'm under the stron impression that the whole fan control > changed in the latest vanilla kernels on my 6910p even before doing > a suspend/resume -- it seems to be more "binary" if you will, in > that the fan is not running at all for a while and then at a 100% > to return back to 0% after doing some serious cooling. With 3.6.11 > and older it is more "analogue", with slow fan when only a bit > cooling is needed. No idea if this is related to the issue at > hand.
For that part of the problem I just discovered something that might be a hint on the cause, there is no governor set for the thermal zones:
/sys/devices/virtual/thermal/thermal_zone0/policy : (null) /sys/devices/virtual/thermal/thermal_zone1/policy : (null) /sys/devices/virtual/thermal/thermal_zone2/policy : (null) /sys/devices/virtual/thermal/thermal_zone3/policy : (null) /sys/devices/virtual/thermal/thermal_zone4/policy : (null)
to my understanding this policies should default default to the CONFIG_THERMAL_DEFAULT_GOV_* configured in the kernel. But it is always (null) for me. And something like # echo fair_share >/sys/devices/virtual/thermal/thermal_zone0/policy does not work either.
Or is this expected behavior?
cheers sascha -- Sascha Wilde : "There are 10 types of people in the world. : Those who understand binary and those who don't." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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