I tried sysctl -w kernel.powersave-nap = 1, and, unfortunately, it didn't help.<div><br></div><div>The option with patching the kernel with an older version didn't seem worth to me considering the potential to break other functionality of the kernel.</div>
<div><br></div><div>The problem was solved by installing Debian 6.0.6 (squeeze) for ppc64. It is not just that Debian resolved the fan issue , but GNOME desktop environment works visibly better on Debian. With YDL 6.2 the transitions of open windows, dragging them on the screen or closing them, were not smooth. </div>
<div><br></div><div>Too bad support for YDL was discontinued. One of the reason I wanted to try YDL was because of Y-HPC. It looks like this product was dropped as well. Does any know what happened to it?</div><div><br></div>
<div>I've read that IBM and RedHat work together to bring Fedora, and by extension RedHat, on PowerPPC architecture. I just installed successfully IBM Java 7 on my G5. Hopefully this collaboration could revive the interest in YDL.</div>
<div><br></div><div>Thank you all for your help!</div><div><br></div><div>Dimitar<br><div><br></div><div><br><br><div class="gmail_quote">On Tue, Nov 13, 2012 at 3:16 PM, <span dir="ltr"><<a href="mailto:rarob@travelinglightfarm.net" target="_blank">rarob@travelinglightfarm.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">When my dual 2.0 G5 tower was still alive (died w/memory controller<br>
problem in '11) I never noticed fan problems except with the first several<br>
G5 releases from YDL. I had YDL6 (6.1 I *think*) on it last and it was<br>
ok. The initial releases when the G5 first came out had zero fan control,<br>
and the box might have taken off given wings and wheels.<br>
<br>
-Rob<br>
<div class="im"><br>
<br>
> He mentioned that it's a "Power G5 1.8GHz" which would be a G5 desktop,<br>
> not<br>
> a PowerBook.<br>
><br>
> I don't recall if fan speed control was ever fully functional on the G5<br>
> tower. IIRC only Apple portables had power management facilities in the<br>
> kernel.<br>
><br>
> -Hal<br>
> Am 13.11.2012 14:42 schrieb "Robert T. Drury" <<a href="mailto:rtdrury@earthlink.net">rtdrury@earthlink.net</a>>:<br>
><br>
</div>>> **<br>
<div><div class="h5">>> I gained control of the fan but there was nothing really I could do with<br>
>> that except smooth out the fan start/stop, which really wasn't enough.<br>
>> You<br>
>> need the fan to run as set at the factory to control the temperature, so<br>
>> if<br>
>> the fan is too loud, look for replacement fans that are quieter. I'm<br>
>> very<br>
>> puzzled as to why Apple chose to put noisy fans in the powerbooks.<br>
>><br>
>><br>
>> Dimitar Georgievski wrote:<br>
>><br>
>> Hi,<br>
>><br>
>> I just installed YDL on my Power G5 1.8 GHz and the fan is out of<br>
>> control. It produces so much noise that after couple of minutes I have<br>
>> to<br>
>> shut down the computer.<br>
>><br>
>> Is there any fix for this issue? I noticed on older posts in the forums<br>
>> users have experienced similar issues in the past. From their replies it<br>
>> doesn't look like there is an official fix for this issue yet.<br>
>><br>
>> Here is the info about my Mac<br>
>><br>
>> $ cat /proc/cpuinfo<br>
>> processor : 0<br>
>> cpu : PPC970FX, altivec supported<br>
>> clock : 1800.000000MHz<br>
>> revision : 3.0 (pvr 003c 0300)<br>
>><br>
>> timebase : 33333333<br>
>> platform : PowerMac<br>
>> model : PowerMac9,1<br>
>> machine : PowerMac9,1<br>
>> motherboard : PowerMac9,1 MacRISC4 Power Macintosh<br>
>> detected as : 337 (PowerMac G5)<br>
>> pmac flags : 00000000<br>
>> L2 cache : 512K unified<br>
>> pmac-generation : NewWorld<br>
>><br>
>> $ uname -a<br>
>> Linux myhost 2.6.29-3.ydl61.4 #1 SMP Mon Sep 7 14:50:27 PDT 2009 ppc64<br>
>> ppc64 ppc64 GNU/Linux<br>
>><br>
>> thanks,<br>
>><br>
>> Dimitar<br>
>><br>
</div></div>>> ------------------------------<br>
<div class="im">>><br>
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>><br>
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<div class="im">>><br>
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<div class="HOEnZb"><div class="h5"><br>
<br>
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