Re: speedstep-ich and ich5, [speedstep]

[Christian Heimanns <heimanns@versanet.de>]

> oh yes, the patch contained a brown paper bag bug. This new version is
> also tested by me, so maybe it helps now.

Hmm.... I've compiled kernel-2.6.8-rc3-bk3 with your new version but no 
changes for me. I'm able to 'modprobe acpi' now, but I still cannot 
change the frequencies when connected to the power supply. If running on 
battery it is possible. Is it possible that this is purposed by the 
manufacturer?

The output of dmesg tells me nothing new:
cpufreq: CPU0 - ACPI performance management activated.
cpufreq: *P0: 3059 MHz, 0 mW, 500 uS
cpufreq:  P1: 1019 MHz, 0 mW, 500 uS

I still have the feeling that there is something wrong with the 
implementation of hyperthreading(HT). I mentioned a time ago that I use 
my notebook with HT diabled in the BIOS and no SMP support in the 
kernel. With HT enabled and SMP + HT support in the kernel my notebook 
will freeze randomly. Don't ask me why....

But ACPI tells me a little difference when I enable/disable HT support 
in the BIOS:
HT enabled: ACPI: Processor [CPU0] (supports C1, 8 throttling states)
HT disabled: ACPI: Processor [CPU0] (supports C1 C2, 8 throttling states)

Throttling works fine as far as I know under both conditions. When HT is 
disabled CPU power management seems also to work (switching between C1 
and C2). I've also checked the INTEL documentation (25302804.pdf), 
Mobile Intel(R) Pentium(R) 4 Processor with 533 MHz System Bus 
Datasheet. Is it possibele that the CPU reports as a Mobile CPU but 
doesn't support frequency and voltage scaling? I won't open the notebook 
to do a 100 percent check what kind of CPU really is build in....

I appreciate your support and help
thanks,

Christian

-- 
---
Christian Heimanns
heimanns@versanet.de

### Pinguine können nicht fliegen
- Pinguine stürzen auch nicht ab! ###