On Mon, Aug 11, 2008 at 06:15:09AM -0700, S K wrote: > > It sounds like the BIOS just doesn't support frequency scaling. > > Perhaps it's disabled in the BIOS setup. Or the system doesn't > > support it at all. > > It works in Windows XP, so I'm not sure if it's only a BIOS issue. On Windows platform drivers sometimes provide a replacement DSDT that might enable cpufreq. If that's the case there's nothing we can do really on the Linux side. You might be able to extract that DSDT from somewhere and supply it to Linux as a replacement DSDT, but that's not a supported configuration in the kernel. > If it's not that simple, then care to impart some knowledge? If you can't get your BIOS to provide the necessary methods then useful Linux cpufreq won't work. It's that simple. p4-clockmod aka throttling might work, but it doesn't actually save energy and often causes severe performance problems. -Andi -- 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
