Le dimanche 6 avril 2014, 19:33:48 Aurelien Jarno a écrit : > reassign 742512 linux > retitle 742512 linux: kernel 3.13 breaks fan cooling on HP 6830S laptop > found 742512 linux/3.13.4-1 > forwarded 742512 https://bugzilla.kernel.org/show_bug.cgi?id=717 > thanks > > On Fri, Mar 28, 2014 at 04:21:15PM +0100, MERLIN Philippe wrote: > > Le mardi 25 mars 2014, 23:55:44 Aurelien Jarno a écrit : > > > On Mon, Mar 24, 2014 at 05:30:56PM +0100, merlin wrote: > > > > Package: lm-sensors > > > > Version: 1:3.3.4-2 > > > > Severity: important > > > > > > > > Dear Maintainer, > > > > > > > > > > > > When i move to linux 3.13-1 i remark that the fan of my computer HP > > > > 6830S > > > > work by in blow and when i observe the temperature given by sensors > > > > the > > > > temperature are very high so it's must be critical for the computer. > > > > > > > sensors : > > > lm-sensors doesn't control the fan, it only display the temperatures > > > returned by the sensors. Have you configured fancontrol to control the > > > fan or did you leave the BIOS of you computer handling that (which is > > > fine if it worked with 3.12)? > > > > Thanks for your answer. > > For the Bios i can't answer at your question, I do'nt see in the Bios HP > > anything about leaving kernel control the fan. > > fancontrol was never configured because pwmconfig does not work, so > > fancontrol is installed but not configured. At start there is a message > > saying that fancontrol is not started because not configured. > > I observe in 3.12 the fan works smoothly and in an continuous way, in 3.13 > > by in blow. > > in 3.12 the temp6 indicator given by sensors evolves during the session > > and > > the speed of the fan also. > > in 3.13 the temp6 indicator doe's not evolve during the session and kept > > the value of start low if the computer is cold and high if the computer > > is hot at start and then the fan works continuously. > > With these observation i think that the temp6 indicator is very important > > for the speed of the fan. > > Do you think i must remove fancontrol ? > > If you don't use fancontrol and that just switch from kernel 3.12 to > 3.13 causes this issue, it is definitely a kernel issue. It is very > likely to be the following upstream bug: > https://bugzilla.kernel.org/show_bug.cgi?id=71711 > > I am therefore reassigning the bug to the linux package. Thanks. I think you are right. Philippe Merlin
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