[ydl-gen] Noisy fan on Power G5 and YDL 6.2

[Dimitar Georgievski]

I tried sysctl -w kernel.powersave-nap = 1, and, unfortunately, it didn't
help.

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.

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.

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?

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.

Thank you all for your help!

Dimitar



On Tue, Nov 13, 2012 at 3:16 PM, <rarob at travelinglightfarm.net> wrote:

> When my dual 2.0 G5 tower was still alive (died w/memory controller
> problem in '11) I never noticed fan problems except with the first several
> G5 releases from YDL.  I had YDL6 (6.1 I *think*) on it last and it was
> ok.  The initial releases when the G5 first came out had zero fan control,
> and the box might have taken off given wings and wheels.
>
> -Rob
>
>
> > He mentioned that it's a "Power G5 1.8GHz" which would be a G5 desktop,
> > not
> > a PowerBook.
> >
> > I don't recall if fan speed control was ever fully functional on the G5
> > tower. IIRC only Apple portables had power management facilities in the
> > kernel.
> >
> > -Hal
> > Am 13.11.2012 14:42 schrieb "Robert T. Drury" <rtdrury at earthlink.net>:
> >
> >> **
> >> I gained control of the fan but there was nothing really I could do with
> >> that except smooth out the fan start/stop, which really wasn't enough.
> >> You
> >> need the fan to run as set at the factory to control the temperature, so
> >> if
> >> the fan is too loud, look for replacement fans that are quieter.  I'm
> >> very
> >> puzzled as to why Apple chose to put noisy fans in the powerbooks.
> >>
> >>
> >> Dimitar Georgievski wrote:
> >>
> >> Hi,
> >>
> >>  I just installed YDL on my Power G5 1.8 GHz and the fan is out of
> >> control. It produces so much noise that after couple of minutes I have
> >> to
> >> shut down the computer.
> >>
> >>  Is there any fix for this issue? I noticed on older posts in the forums
> >> users have experienced similar issues in the past. From their replies it
> >> doesn't look like there is an official fix for this issue yet.
> >>
> >>  Here is the info about my Mac
> >>
> >>  $ cat /proc/cpuinfo
> >> processor : 0
> >> cpu : PPC970FX, altivec supported
> >> clock : 1800.000000MHz
> >> revision : 3.0 (pvr 003c 0300)
> >>
> >>  timebase : 33333333
> >> platform : PowerMac
> >> model : PowerMac9,1
> >> machine : PowerMac9,1
> >> motherboard : PowerMac9,1 MacRISC4 Power Macintosh
> >> detected as : 337 (PowerMac G5)
> >> pmac flags : 00000000
> >> L2 cache : 512K unified
> >> pmac-generation : NewWorld
> >>
> >>  $ uname -a
> >> Linux myhost 2.6.29-3.ydl61.4 #1 SMP Mon Sep 7 14:50:27 PDT 2009 ppc64
> >> ppc64 ppc64 GNU/Linux
> >>
> >>  thanks,
> >>
> >>  Dimitar
> >>
> >> ------------------------------
> >>
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