Yeah, that makes sense to put a 2200 mAh battery in a laptop which draws 1500 mA in normal operation, doesn't it? 8O

About throttling, do you mean clock modulation? That is a weird thing. According to Intel it is mainly used for thermal management. For me thermal = power, so I would expect power ...

bdz,

Thanks for the pointer. I never run the machine long enough on a battery to find this. The battery is exhausted before I can open a console in X. (Well, not literally)

What laptop do you have actually? I have a HP/Compaq NC6230.

I don't understand the high power consumption of this machine ...

bdz,

Those are quite an impressive test results you showed. Great work. Where do you get the temperatures and currents from? Are they somewhere available in the /sys directory? Or did you probe for them somewhere deep in the hardware?

Do you intend to share your patch? I have a Sonoma 1.86 and I ...

The plot thickens....

I have been running this configuration for a week now, and frequencies always were according to my last post. I have ksystemguard always running to see something unusual. Without changing anything, this morning /proc/cpuinfo showed:


jlinkels@jlinkels_lt:~$ cat /proc/cpuinfo ...

Some more update:

So to see, the my system is not running on 533 MHz. This is the output of /proc/cpuinfo:


jlinkels@jlinkels_lt:~# cat /proc/cpuinfo
[...]
vendor_id : GenuineIntel
cpu family : 6
model : 13
model name : Intel(R) Pentium(R) M processor 1.86GHz
stepping : 8
cpu MHz : 532.048
cache ...

Some update:

I have changed the minimum speed setting to 533 MHz (4x bus clock) by putting this table in speedstep-centrino.c:


static struct cpufreq_frequency_table dothan_1867[] =
{
OP( 533, 750, 750, 750, 750),
OP( 800, 750, 750, 750, 750),
OP(1067, 1084, 1084, 1084, 1084),
OP(1333, 1116 ...

I added the tables for my processor (Dothan_C0, a.k.a. Sonoma) to the speedstep-centrino.c file, and re-compiled the kernel. Still have some side problems, but the most important is that the speedstep-centrino file IS used. I do see the correct info with cpufreq-info.

However, once I know that my ...

dkulp,

It makes a lot of sense what you say. However, I am surprised about the lack of replies to your post, acknowledging or denying what you say. I have a 133 MHz Sonoma myself, and I am worried about the power consumption as well.

I am trying to find out whether or not it is applicable what you ...