Messages in this thread | | | From | "Michael S. Zick" <> | Subject | Re: Linux 2.6.30-rc8 [also: VIA Support] | Date | Fri, 5 Jun 2009 02:27:40 -0500 |
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On Fri June 5 2009, Harald Welte wrote: > On Thu, Jun 04, 2009 at 10:07:37AM -0700, Linus Torvalds wrote: > > > > > > Side note: is it more stable if you disable the VIA speedstep thing > > (whatever it's called (ok, google tells me it's called "TwinTurbo" and > > "Advanced PowerSaver")? > > > > Features like that easily put a huge stress on power regulators etc, if > > they result in sudden changes in current draw. Underspecced capacitors > > etc can cause CPU "brown-outs", which in turn can easily cause total > > failure. > > I agree, that might be an interesting test. > > As a side note: The C7-M actually uses the same software interface as Intel CPU > for doing the power transitions (ACPI Performance States). Only very early C7 > models used the cpufreq/e_powersaver.c driver. >
What is "very early C7 models" in terms of cpuid results?
If you can get permission to reveal those field details - we can test for that (this build reports "stepping 0" but I don't trust the report).
Mike > So if you want to disable it, make sure you disable X86_ACPI_CPUFREQ. >
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