On Fri, Aug 8, 2008 at 1:41 AM, Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx> wrote: > S K wrote: >> Hi, >> >> I already did the cpufreq.debug thing and it was using the >> smi_speedstep driver instread of the acpi_speedstep (or whatever is >> the right name). >> >> Alan already told me this is likely an ACPI issue. So, I already sent >> the acpidump in a prev email (Aug 3rd 08). I'm don't have access to my >> home machine right now. Will send it again later if you can't get my >> prev email from the archives. >> > > I could be completely wrong though! > > I'd not heard of speedstep_smi before (now I look, it doesn't seem to be > an option in the cpu frequency scaling Kconfig menu?). > > I assumed the error messages you had about SMI were just flack. I > thought acpi-cpufreq was the only option on recent machines - and that > a quad core probably counts as recent. The error messages could be due > to Fedora scripts unconditionally loading several different modules, to > find one that works. > > I'm not sure how you can answer Zhao's question if you don't already > know. I expect Fedora C7 does try loading acpi_cpufreq (as well as > speedstep_smi). Whether your machine actually supports acpi_cpufreq is > the question we're trying to answer. (This is where looking at Windows, > or BIOS settings, would help). > > Alan > My machine has acpi-cpufreq module, but when I try to load it, I get: FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.25.11-97.fc9.i686/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device Btw, yes, cpu freq scaling works in Windows XP. What should I look for in Windows? I build my own system, so I have gone through my system BIOS several times and don't remember anything related to freq scaling. But I will check again. Btw, my machine is a Shuttle SG33G5. It has other issues too but right now heat is the biggest concern. Thanks, SK -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
