kernel2.4.22, "cpufreq" support not included. How

YsndHalf · n00b Joined: 14 May 2003 Posts: 53 Location: Barcelona

Hi people,
I've got gentoo kernel 2.4.22 in my Acer Travelmate 291LCi laptop (Centrino), and wanna use "cpufreq". I've emerged it OK, but it doesn't work.
I've seen in other posts that I should enable an option during "menuconfig", but it doesn't appear anywhere.
I've also seen that I should do some "patch" to the kernel. HOW do I patch it for including "cpufreq" option? (noob level, plz! ;-)

)
Yeah, I know that kernel 2.6 already includes many of these things. Actually I've tested it successfully, but abandoned (for the moment!) due to USB and other problems, including a strange hi-freq noise from my CPU (???). It was some kind of electrical/interference noise... strange

Thankz in advance! Regards,
Jordi

Earthwings · Posted: Mon Mar 22, 2004 9:57 pm Post subject:

You can have a look here. The kernel config is for Kernel 2.6, but I think the ACPI patches are quite the same so it should be very similar for 2.4 series, too.

YsndHalf · n00b Joined: 14 May 2003 Posts: 53 Location: Barcelona

Many thanks for the info, Earthwings

I didn't know that URL, I've found that very useful (specially for the "battery" runlevel, hdisk spindown howto, and so)
Anyway, I tried those few (and other) things on my 2.4.22; I also found that "patchin.sh", but something went wrong and my kernel got corrupted... OK, no harm, no foul, I finally passed to 2.6 (gentoo-dev-sources) and I'm happy: I think that SpeedStep finally works, the USB mouse too (hey, "uhci-ecd" substitutes "uhci"!), and that X-files noise from my CPU has dissapeared.
Finally, I've found here http://www.telecable.es/personales/lacofino1/highscreen.html (in spanish!) an interesting guide for the owners of a HighScreen CL50 Centrino laptop (which can be applied to many other laptops!), including ATI Mobility, DVD/CD-RW, battery management, PCMCIA, infrared (and using a mobile phone with IR as modem!), and other cool things.
Regards,
Jordi

numerodix · l33t Joined: 18 Jul 2002 Posts: 743 Location: nl.eu

Jordi, I'm still on 2.4.25-gentoo1, did you find a kernel package that includes the speedstep options? It's not in gentoo and it's not in ck, where else should I look? mm-2.4x has been phased out already so that's no good.

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YsndHalf · n00b Joined: 14 May 2003 Posts: 53 Location: Barcelona

Hi Numerodix,
hem... I'm sorry but I'm not an expert on Linux and Gentoo -although I'm proud that, lately, I'm getting an interesting experience with it!

As I said, I preferred to migrate to kernel 2.6, which is not so difficult. Since then (a few weeks) I've been very happy with the SpeedStep implementation (>~3 hours battery), although there are a few things to do yet (hard disk spinoff, etc). I suppose that with 2.4 you can also do nice things (I've heard something about complimentary packages for SpeedStep, as you said), but all my tries on this direction didn't give good results...

By the way, a question: I cannot get "energy save" (turning off the screen after a few minutes) working at all, neither in my laptop (kernel2.6) or my desktop (kernel2.4, AthlonXP). Do you know waht could happen?

Rergards,
Jordi :-)

numerodix · l33t Joined: 18 Jul 2002 Posts: 743 Location: nl.eu

Yes I'm on 2.6 now myself.

Well you know I've set my screensaver on the laptop to just blank the screen, goes black after 5 minutes. I'm not sure that's what you mean but I haven't gone any deeper than that.
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Earthwings · Posted: Tue May 11, 2004 4:30 pm Post subject: