Proc throttling on Athlon XP-M / Mandrake 10
I am running Mandrake 10 on an eMachines 5312, and don't seem to be able to get processor throttling to work. This machine has an Athlon XP-M 2400+ processor, which I know supports throttling; various WinXP tools do indeed show the processor speed changing with load.
Under Linux this doesn't seem to work. I have "Enable performance profiles" and "Enable processor throttling" checked in the ACPI Config tab of KLaptop; however, /proc/acpi/processor/CPU0/throttling still reports <not supported>, and /proc/acpi/processor/CPU0/info confirms this.
Also, the only "performance profile" available in all the KLaptop options that offer a choice is "0 MHz"... I assume that, in a system with working throttling, there's an option here to select a clock speed.
What seems to be the matter?
Is Athlon XP-M throttling support working in Linux, or does it only work for Centrino/etc?