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List Archive: gentoo-laptop
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To: gentoo-laptop@g.o
From: "Marco Calviani" <marco.calviani@...>
Subject: Re: Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
Date: Thu, 11 Oct 2007 12:14:58 +0200
Hi Beso,
   i've tried with your trip_points modification but it gives this error:

bash: echo: write error: Invalid argument

like i'm not able to write on that file.

And of course acpitool gives me a random ACPI temperature:

  Battery #1     : charged
  AC adapter     : on-line
  Thermal zone 1 : ok, 40 C

PS: i followed all your suggestions concerning the microcode and fan
option in the kernel.
Could this be a problem of DSDT?

regards,
m

On 10/10/07, Beso <givemesugarr@...> wrote:
>
>
> 2007/10/10, Marco Calviani <marco.calviani@...>:
> > Hi Beso,
> >   sorry i misunderstood your suggestion. I did what you suggest and
> > this is the result of the trip_points:
> >
> > critical (S5):      100C
>
> wow.... you don't have anything that says to the cpu to slow down when it
> reaches some point....
> now, to add some other trip points you have to copy these in a konsole with
> root priviledges:
> echo "passive:                 78 C: tc1=3 tc2=1 tsp=150 devices=CPU0 \
> active[0]:               68 C: devices= FN1 \
> active[1]:               58 C: devices= FN2" >>
> /proc/acpi/thermal_zone/TZ01/trip_points
>
> then do a cat on the thermal_zone/TZ0/trip_points to see if you've added the
> lines for passive and active  lines.
> that means that when your thermal reaches 78 degrees it will slow down the
> processor. from 58 to 68 it will turn on the fan but don't turn down the
> speed of the processor, below 58 it will turn off the fan.
> >
> >
>
> > which i suppose is the reason why at that temperature the laptop switch
> off.
> > So, nothing except for the critical state. Should i have to add there
> something?
>
> if the pc turns down then it can read from somewhere the actual thermal
> point. you try to see after actually setting the things i've just said, if
> your pc is behaving as it should. remember to also turn on the polling
> frequency. without it it will not look for thermal changes. and remember to
> actually compile the mce and speedstep features in the kernel and not as
> module and reboot and then set the things i've mentioned. after that type
> acpitool (it should be installed by default with the acpi package) and see
> what it says. it should give something like this:
>
> >   Battery #1     : charging, 46.00%, 01:17:04
> >   AC adapter     : on-line
> >   Thermal zone 1 : activ, 58 C
>
> it indicates, as you can see not only the battery and ac status but also the
> current processor mode (active) and the current thermal temperature.... if
> you don't have acpitool try acpi -t (you'll surely have either one or the
> other) and it should indicate the thermal state and temperature. if this
> command don't give you these infos then you'll have to be very careful using
> your pc since acpi probably don't support santarosa well. you should then
> unmask newer acpi in portage (adding acpi in /etc/package.keywords) and try
> with the new acpi ( 1.0.6).
> you may need some additional acpi modules, like ibm_acpi for example, but
> that depends on your's pc brand. i'm looking around to see if there were
> someone that had problems with santarosa and linux acpi, but for the moment
> i couldn't find something useful. try what i've said and see if the things
> work. if they work then append the tweak in some script that starts at boot
> like the top of xdm script and you'll have a functional system. let me know
> if you were succesful on that.
>
>
> > An additional problem is this:
> > doing a
> > $ cat /proc/acpi/thermal_zone/TZ01/temperature
> > it gives only a:
> >
> > temperature:     0C
> >
> > My question is:
> > even if i change the polling frequency, how the fan can start if the
> > temperature gives 0??
> > Do you know if it's possible to link the fan start with the core
> > temperature instead of the ACPI thermal zone?
>
> probably the fan don't start since  you have it as a module. i've curently
> had the same problem which solved by compiling it integrated in the kernel.
> the fan in your case should always be on, not always be off....
>
> >
> > Regards,
> > m
> >
> > >
> > > thats why i told you to do this commanda:
> > > > echo "2 seconds" >
> > > /proc/acpi/thermal_zone/TZ01/polling:frequency
> > > >
> > >  this enables the polling of your thermal every 2 seconds. this should
> be
> > > enough.
> > > do you have the other file that i mentioned:
> > > > /proc/acpi/thermal_zone/TZ01/trip_points ?!
> > > this sets the trip points for your processor. whitout it you governor
> cannot
> > > understand what to do even if it polls right.
> > >
> > > as for the kernel thigs, set these options:
> > > select processor type: intel core2 instead of normal x86
> > > CONFIG_X86_SPEEDSTEP_CENTRINO=y instead of m
> > > CONFIG_ACPI_FAN=y instead of m
> > > CONFIG_MICROCODE=y instead of m (for what i know cpu micocode is needed
> on
> > > intels)
> > > CONFIG_K8_NUMA=n instead of y (this should be the amdk8 numa, that you
> > > should not need. if it's not then let him be)
> > > CONFIG_X86_MCE_AMD=n instead of y (you don't need amd mce features since
> > > they are not included into intel cpus)
> > > CONFIG_NR_CPUS=32 <-- this leaves me a little dazzled: do you really
> have 32
> > > cpus in your core?! for what i know this sets the real number of cpus
> inside
> > > the kernel, but i might be wrong. so if this is really what i think it
> is,
> > > ie the real nr of cpus (not virtual ones) set this to 2 or 4 based on
> your
> > > cpu cores.
> > > CONFIG_HOTPLUG_CPU=n instead of y (i don't really think that you'll
> unplug
> > > your cpu from your laptop when the laptop is still running considering
> that
> > > you don't use multi cpus but a single multicore cpu. the same goes for
> > > memory hotplug: i don't think that your laptop supports it, so just
> disable
> > > it.)
> > > for what i have seen the acpi problems may be due to a failure in
> loading
> > > the intel speedstep module. if you look into the modules loaded (lsmod)
> you
> > > should not see it. so it's better to insert it directly in the kernel,
> since
> > > it is one of the first modules called (if you use it as a module you
> should
> > > be loading it with initramdisk before loading acpi to have a full acpi
> > > configuration).
> > > try setting these options and recompile and install the new kernel and
> > > modules and reboot (kexec is not working on my amd turion with 64bit
> enabled
> > > and so may also be for your core2duo).
> > >
> > >  2007/10/10, Marco Calviani < marco.calviani@...>:
> > > > Sorry i missed the attachment.
> > > >
> > > > regards,
> > > > m
> > > >
> > > >
> > >
> > >
> > >
> > > --
> > > dott. ing. beso
> > --
> > gentoo-laptop@g.o mailing list
> >
> >
>
>
>
> --
> dott. ing. beso
-- 
gentoo-laptop@g.o mailing list


Replies:
Re: Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Beso
References:
Problem with CPU temperature (Santa Rosa CPU)
-- Marco Calviani
Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Marco Calviani
Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Marco Calviani
Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Marco Calviani
Re: Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Beso
Re: Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Marco Calviani
Re: Re: [gentoo-user] Problem with CPU temperature (Santa Rosa CPU)
-- Beso
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Updated Jun 17, 2009

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