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Re: ACPI support on Compaq Presario 2500



On Thursday 05 October 2006 09:39, Jörg-Volker Peetz wrote:
> Yoanis Gil Delgado wrote:
> > I've tried to load cpufreq* modules, and nothing. I really need this
> > working. Since my cpu temperature is always above 55 degrees (celcius).
>
> Maybe the contents of "crash_notes" can help, try "cat
> /sys/devices/system/cpu/cpu0/crash_notes".
> Is your processor ready for speedstep at all?
this is from "cat /sys/devices/system/cpu/cpu0/crash_notes":

root@hogwarts:~# cat /sys/devices/system/cpu/cpu0/crash_notes
1bebe400


> Take a look at "/proc/acpi/processor/*/info".
root@hogwarts:~# cat /proc/acpi/processor/CPU0/info
processor id:            0
acpi id:                 0
bus mastering control:   yes
power management:        yes
throttling control:      no
limit interface:         no

>
> If it has "power management", first of all you need to load a driver for
> your processor. Try to load "speedstep_ich", and after that the other
> modules.
i tried loading "speedstep_ich" and it didn't work.
root@hogwarts:~# modprobe speedstep_ich
FATAL: Error inserting speedstep_ich 
(/lib/modules/2.6.16-2-686/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-ich.ko): 
No such device

And it worked with speed speedstep_lib

> But may be its easier just to use a package like "powernowd" (works also
> for speedstep).
powernowd didn't worked. 

root@hogwarts:~# powernowd
powernowd: PowerNow Daemon v0.97, (c) 2003-2006 John Clemens
powernowd: Found 1 scalable unit:  -- 1 'CPU' per scalable unit
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq: No such file or 
directory

PowerNowd encountered and error and could not start.
Please make sure that:
 - You are running a v2.6.7 kernel or later
 - That you have sysfs mounted /sys
 - That you have the core cpufreq and cpufreq-userspace
   modules loaded into your kernel
 - That you have the cpufreq driver for your cpu loaded,
   (for example: powernow-k7), and that it works. Check
   'dmesg' for errors.
If all of the above are true, and you still have problems,
please email the author: clemej@alum.rpi.edu

>
> On a Compaq 2825EA with a Pentium 4 Mobile using the kernel "ondemand"
> speedstep governor" the directory "/sys/devices/system/cpu/cpu0/cpufreq"
> contains, e.g.,
>
> -r--r--r-- 1 root root 4096 Oct  5 15:26 affected_cpus
> -r-------- 1 root root 4096 Oct  5 15:26 cpuinfo_cur_freq
> -r--r--r-- 1 root root 4096 Oct  5 15:26 cpuinfo_max_freq
> -r--r--r-- 1 root root 4096 Oct  5 15:26 cpuinfo_min_freq
> drwxr-xr-x 2 root root    0 Oct  4 20:20 ondemand/
> -r--r--r-- 1 root root 4096 Oct  5 15:26 scaling_available_frequencies
> -r--r--r-- 1 root root 4096 Oct  5 15:26 scaling_available_governors
> -r--r--r-- 1 root root 4096 Oct  5 15:26 scaling_cur_freq
> -r--r--r-- 1 root root 4096 Oct  5 15:26 scaling_driver
> -rw-r--r-- 1 root root 4096 Oct  4 20:20 scaling_governor
> -rw-r--r-- 1 root root 4096 Oct  5 15:26 scaling_max_freq
> -rw-r--r-- 1 root root 4096 Oct  5 15:26 scaling_min_freq
> drwxr-xr-x 2 root root    0 Oct  4 20:19 stats/
>
> Regards,
> Jörg-Volker
Regards 
Yoanis



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