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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

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Old 08-03-2004, 08:08 AM   #1
m.b
LQ Newbie
 
Registered: Apr 2004
Posts: 5

Rep: Reputation: 0
Dothan Frequency Scaling not working (SuSE 9.1/Mandrake 10)


hi

on my new laptop, a dothan 1.7 GHz, neither with SuSE nor with Mandrake is speedstepping working

to start it manually, im using, as root, modprobe speedstep-centrino

following error message im getting constantly

FATAL: Error inserting speedstep_centrino (/lib/modules/2.6.5-7.95-default/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko): No such device

i found out, that the dothan would be supported in the 2.6.7 kernel, i don't know, if suse or mandrake are building the dothan support in their kernels, so i compiled the 2.6.7 kernel, still the same message

the following i found out about the speedstep-module

in speedstep-centrino.c the code looks as followed

static const struct cpu_id cpu_id_dothan_a1 = {
.x86_vendor = X86_VENDOR_INTEL,
.x86 = 6,
.x86_model = 13,
.x86_mask = 1,
};

while cat /proc/cpuinfo gives me following info

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 13
model name : Intel(R) Pentium(R) M processor 1.70GHz
stepping : 6
cpu MHz : 1693.373
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe tm2 est
bogomips : 3350.52

so i changed .x86_mask = 1, to 6 but still no success in throttling down my cpu

with acpi the throttling is working only a short time and only when following constellation is given:

only when im booting from battery the cpu is throttled but only until im starting a process, with cpu demand, after the cpu is then on 1.7 GHz, its no longer throttling down.

well i need the throttling, i dot wanna loose battery after an hour of working without ac power.

any help ?
have i missed something to start the module ?
 
Old 04-05-2005, 10:03 PM   #2
Novastorm
LQ Newbie
 
Registered: Feb 2005
Location: Melbourne, AUS
Distribution: Smoothwall Express 2.0Fixes8/Debian 3.1R2
Posts: 5

Rep: Reputation: 0
Ok i've got the same issue with my intel pentium-m 1.6ghz. I believe this issue is what has been mentioned here...

http://www.unfug.org/~link/md95300.html

Scroll down to ACPI/speedstep.

Anyone know how to fix this? I had it working once on SUSE 9.1, however i didn't change anything as i don't know how, it must have come as an update through YAST or something??? Works out of the box though on Novell Linux Desktop 9
 
  


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