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Re: cooling fan is oscillating regularly once f11 beta starts to run



On Fri, 10 Apr 2009 16:16:06 -0400 (EDT)
"Robert P. J. Day" <rpjday crashcourse ca> wrote:

> On Fri, 10 Apr 2009, François Cami wrote:
> 
> > On Fri, 10 Apr 2009 07:51:31 -0400 (EDT)
> > "Robert P. J. Day" <rpjday crashcourse ca> wrote:
> >
> > >
> > >   (while i'm on a roll ...)
> > >
> > >   on this gateway m-1626, shortly after f11 beta starts to run, the
> > > cooling fan kicks into this regular oscillation with a period of about
> > > 4 seconds -- speed up, slow down, speed up, slow down ... you get the
> > > idea.
> > >
> > >   to test that it's not a HW issue, i rebooted and hopped into the
> > > BIOS and let it sit there for several minutes, whereupon it ran nice
> > > and smoothly the entire time.
> > >
> > >   as soon as i rebooted fedora and got to my GNOME desktop, the
> > > oscillation started up again.  occasionally, it will calm down briefly
> > > but that doesn't last long.
> > >
> > >   anyone else seeing this?
> >
> > I'd say, file a bug.
> 
>   against which component?  the kernel?

Yes.

I still think playing with cpuspeed (for instance, keeping the frequency at
the lowest level possible, or highest) will let you know if it's a thermal
oscillation issue, or a fan control issue.

--
fdc


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