From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nm8-vm3.bullet.mail.gq1.yahoo.com (nm8-vm3.bullet.mail.gq1.yahoo.com [98.136.218.226]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 425511A0947 for ; Thu, 20 Nov 2014 20:12:00 +1100 (AEDT) Message-ID: <546DB05A.7040704@yahoo.com> Date: Thu, 20 Nov 2014 10:11:54 +0100 From: =?UTF-8?B?TWFydGluIEt1a2HEjQ==?= MIME-Version: 1.0 To: linuxppc-dev@lists.ozlabs.org Subject: Re: Fan management PowerMac7,2 References: <546C8763.6020209@yahoo.com> <546D53F5.4030205@daenzer.net> In-Reply-To: <546D53F5.4030205@daenzer.net> Content-Type: text/plain; charset=UTF-8; format=flowed List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 11/20/2014 03:37 AM, Michel Dänzer wrote: > On 19.11.2014 21:04, Martin Kukač wrote: >> Hello, >> >> I was directed to this list on #ppc64/freenode IRC channel. I have >> PowerMac7,2 (AGP, 2xPowerPC 970(2.2) 2GHz) and I wanted to try kernel >> supporting kvm-pr module, which is not in 3.2.63 kernel provided with >> Debian Wheezy. I downloaded 3.14.24, compiled it using original config >> from 3.2.63 and after booting fan management does not work. I tried >> therm_pm72 (which is deprecated, but works well with Debian kernel) and >> windfarm_pm72 modules, but neither worked - after about five minutes >> from boot all fans go to maximum and stay this way no matter the CPU >> load or frequency. >> >> I downloaded vanilla 3.2.64, compiled it the same way and there fans >> work with therm_p72 well. This kernel does not have kvm-pr, so I >> reverted to original kernel provided with Wheezy. >> >> I looked to logs, i tried to search the web whether anyone had already >> the same problem, but it seems that nobody else described not to say >> solved this. Can anyone please point me to anything that would help? I >> can provide whatever log files required. > > Might be the same problem as discussed in > https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-August/109700.html > and the following posts: The i2c_powermac module doesn't get loaded > automatically with recent kernels. > > Thanks! That helped for therm_pm72 module, it works now as expected. (It didn't help for windfarm_pm72 though, if I put it in /etc/modules with i2c_powermac and remove therm_pm72, fans still go to full speed in a few minutes. It's not problem for now, but if I understand it correctly, therm_pm72 is deprecated and will be removed one day, so it could be problem after that.) Martin