I have a Toshiba L355 with Ubuntu 9.10 (and Vista). When I plug in two
USB<->RS232 converters for a project I'm working on (with Ubuntu) the fan
will come on full speed after a while and never go off until I shut down.
The keyboard would feel warm and the fan would start, and after a while with
this is with this cold weather (this was all being done in the garage), it
would be quite cool, but the fan was still going full blast. Shutting down
and rebooting the fan would then be off. It was like, once started the fan
doesn't shut down.
Concerning overheating--
My daughter has a Toshiba laptop and she ended up with a cooling stand, but
eventually that was not enough. The machine wouldn't make it through bootup
frequently. I took a shop-vac and stuck the nozzle over the air intake. (It
really gets the fan spinning!) A lot of cat hair got sucked out and the
machine worked just fine. Cleaning the heat-pipe would have been best, but
to get at it requires virtually *total* disassembly of the machine. The shop
vac was quick and sufficient.
Don
On Friday 26 March 2010 09:20:10 pm Danny trotter wrote:
> *Dell Inspiron 9200 Laptop, Ubuntu 9.10 x32*
> Pent M 1.8Ghz - 17" widescreen display - 1gb 333mhz ram - 60 gb hard drive
> - Intel or Dell wireless adapters b and/or g, and/or a (Intel Pro 2200 wifi
> b/g adapter)
>
> I have tested the laptop many times...I have had windows XP on it for
> awhile and had up to 7 browsers and some with flash running and have never
> encountered the crazy fan problem. It only happens to me in Ubuntu and
> Intel Speed Step is turned on.
>
> Just the other day the computer went through an update inside of ubuntu and
> the whole time it was updating + about 4 hours that I was at work the fan
> was going nutz. The laptop was out in the open on a wooden table so
> airflow was good. I have taken the laptop apart and made sure no dust is
> blocking the vents and all the heatsinks are clean.
>
> I haven't heard of that powertop thing...think I might give that a
> try...thanks for the suggestion!
>
> Dan
>
> On Fri, Mar 26, 2010 at 8:56 AM, Jim Forte <james@magna.net> wrote:
> > I use powertop on my laptop and seems to do what needs to be done on
> > most.
> >
> >
> > ---------------------------------------------------------------
> > Yours Truly
> > James Forte, Magna Timeshare Software
> >
> > http://www.MagnaTimeshareSoftware.net/ mailto:James@Magna.Net
> > East Coast 407-352-2402
> > West Coast 415-367-7496
> > UK +44 80 8178 8506
> > TrustFax:866-752-3073
> >
> > THIS COMMUNICATION IS ONLY INTENDED FOR THE RECIPIENT(S) ABOVE.
> > PLEASE DISCARD IF YOU HAVE RECEIVED THIS IN ERROR.
> > -----------------------------------------------------------------
> >
> >
> > On Fri, 26 Mar 2010, steve szmidt wrote:
> >
> > On Friday 26 March 2010, Danny trotter wrote:
> >> processor fan will go in to overdrive and it is a LOUD LOUD noise that
> >>
> >>> will
> >>> never quit unless I shut down the computer totally and let it sit for
> >>> about
> >>> 5min and then start it back up.
> >>
> >> From your limited description I do not get the idea that there is
> >>
> >>> something
> >>
> >> wrong but simply a CPU that is running hot, and a fan that does what it
> >> is supposed to. How long have you actually run it after it spins up to
> >> full speed? What were you running on the computer while waiting?
> >> Can you actually control the fan from Ubuntu? Being a laptop I would
> >> expect it
> >> to be firmware controlled and out of the control of whatever O/S you are
> >> running.
> >>
> >> Laptops often have a need for breathing through the bottom of the case.
> >> Sitting on a desk raises it up enough, whereas on something like a bed
> >> will
> >> inhibit it from getting full ventilation.
> >>
> >> An option is to buy a cooling unit which the laptop sits on and is
> >> cooling the
> >> laptop from the bottom. There are several designs which provides this
> >> functionality.
> >>
> >> You did not include the brand and model of your laptop, I would google
> >> using
> >> the model and loud fan to see if others have the same complaint. It is
> >> more
> >> likely to be a loud design than something wrong.
> >>
> >>
> >> -----------------------------------------------------------------------
> >
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