* Laptops with SpeedStep technology.
@ 2002-08-29 8:13 Steffen Persvold
2002-08-29 8:34 ` Morten Helgesen
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Steffen Persvold @ 2002-08-29 8:13 UTC (permalink / raw)
To: linux-kernel
Hi all,
Recently I got myself a Dell Inspiron 8200 with a Intel P4 Mobile wich has
SpeedStep technology. With power plugged in, this processor runs at 1.6
GHz and with battery only, 1.2 GHz. However I've found that the
/proc/cpuinfo doesn't show this and I was wondering if there were some
patches lying around before I began to look at this on my own.
Regards,
--
Steffen Persvold | Scali AS
mailto:sp@scali.com | http://www.scali.com
Tel: (+47) 2262 8950 | Olaf Helsets vei 6
Fax: (+47) 2262 8951 | N0621 Oslo, NORWAY
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Laptops with SpeedStep technology.
2002-08-29 8:13 Laptops with SpeedStep technology Steffen Persvold
@ 2002-08-29 8:34 ` Morten Helgesen
[not found] ` <19221.1030616464@www25.gmx.net>
2002-08-29 10:29 ` Alan Cox
2 siblings, 0 replies; 5+ messages in thread
From: Morten Helgesen @ 2002-08-29 8:34 UTC (permalink / raw)
To: Steffen Persvold; +Cc: linux-kernel
Hey Steffen,
On Thu, Aug 29, 2002 at 10:13:06AM +0200, Steffen Persvold wrote:
> Hi all,
>
> Recently I got myself a Dell Inspiron 8200 with a Intel P4 Mobile wich has
> SpeedStep technology. With power plugged in, this processor runs at 1.6
> GHz and with battery only, 1.2 GHz. However I've found that the
> /proc/cpuinfo doesn't show this and I was wondering if there were some
> patches lying around before I began to look at this on my own.
I played with this some time ago - I`ll see if I can dig out the patch
later today.
== Morten
--
"Livet er ikke for nybegynnere" - sitat fra en klok person.
mvh
Morten Helgesen
UNIX System Administrator & C Developer
Nextframe AS
admin@nextframe.net / 93445641
http://www.nextframe.net
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Laptops with SpeedStep technology.
[not found] ` <19221.1030616464@www25.gmx.net>
@ 2002-08-29 10:24 ` Dominik Brodowski
2002-08-29 14:03 ` Steffen Persvold
0 siblings, 1 reply; 5+ messages in thread
From: Dominik Brodowski @ 2002-08-29 10:24 UTC (permalink / raw)
To: Steffen Persvold; +Cc: linux-kernel
Hi,
> Recently I got myself a Dell Inspiron 8200 with a Intel P4 Mobile wich has
> SpeedStep technology. With power plugged in, this processor runs at 1.6
> GHz and with battery only, 1.2 GHz. However I've found that the
> /proc/cpuinfo doesn't show this and I was wondering if there were some
> patches lying around before I began to look at this on my own.
Depending on the chipset, cpufreq for 2.5. ( http://www.brodo.de/cpufreq/ )
should show the correct value in /proc/cpuinfo _and_ offer you the chance to
control the processor speed. For 2.4., the functionality is offered, but
/proc/cpuinfo stays the same (yet).
Dominik
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Laptops with SpeedStep technology.
2002-08-29 8:13 Laptops with SpeedStep technology Steffen Persvold
2002-08-29 8:34 ` Morten Helgesen
[not found] ` <19221.1030616464@www25.gmx.net>
@ 2002-08-29 10:29 ` Alan Cox
2 siblings, 0 replies; 5+ messages in thread
From: Alan Cox @ 2002-08-29 10:29 UTC (permalink / raw)
To: Steffen Persvold; +Cc: linux-kernel
On Thu, 2002-08-29 at 09:13, Steffen Persvold wrote:
> Hi all,
>
> Recently I got myself a Dell Inspiron 8200 with a Intel P4 Mobile wich has
> SpeedStep technology. With power plugged in, this processor runs at 1.6
> GHz and with battery only, 1.2 GHz. However I've found that the
> /proc/cpuinfo doesn't show this and I was wondering if there were some
> patches lying around before I began to look at this on my own.
cpufre handles this including switching processor speeds, fixing up
udelay and ensuring you dont get stuck at random boot speed
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Laptops with SpeedStep technology.
2002-08-29 10:24 ` Dominik Brodowski
@ 2002-08-29 14:03 ` Steffen Persvold
0 siblings, 0 replies; 5+ messages in thread
From: Steffen Persvold @ 2002-08-29 14:03 UTC (permalink / raw)
To: Dominik Brodowski; +Cc: linux-kernel
On Thu, 29 Aug 2002, Dominik Brodowski wrote:
> Hi,
>
> > Recently I got myself a Dell Inspiron 8200 with a Intel P4 Mobile wich has
> > SpeedStep technology. With power plugged in, this processor runs at 1.6
> > GHz and with battery only, 1.2 GHz. However I've found that the
> > /proc/cpuinfo doesn't show this and I was wondering if there were some
> > patches lying around before I began to look at this on my own.
>
> Depending on the chipset, cpufreq for 2.5. ( http://www.brodo.de/cpufreq/ )
> should show the correct value in /proc/cpuinfo _and_ offer you the chance to
> control the processor speed. For 2.4., the functionality is offered, but
> /proc/cpuinfo stays the same (yet).
>
Thanks Dominik, this was exactly what I was looking for. I will try it
out.
Regards,
--
Steffen Persvold | Scali AS
mailto:sp@scali.com | http://www.scali.com
Tel: (+47) 2262 8950 | Olaf Helsets vei 6
Fax: (+47) 2262 8951 | N0621 Oslo, NORWAY
^ permalink raw reply [flat|nested] 5+ messages in thread
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2002-08-29 8:13 Laptops with SpeedStep technology Steffen Persvold
2002-08-29 8:34 ` Morten Helgesen
[not found] ` <19221.1030616464@www25.gmx.net>
2002-08-29 10:24 ` Dominik Brodowski
2002-08-29 14:03 ` Steffen Persvold
2002-08-29 10:29 ` Alan Cox
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