On Mon, Nov 30, 2009 at 4:07 PM, John Watlington <w...@laptop.org> wrote: > > On Nov 29, 2009, at 1:21 PM, Tiago Marques wrote: > >> On Sun, Nov 29, 2009 at 5:53 PM, Chris Ball <c...@laptop.org> wrote: >>> >>> Hi, >>> >>> >> You can also disable it using My Settings -> Power -> Automatic >>> >> power management. >>> >>> (Cool, I didn't think that would work yet! But it does.) >> >> I also confirm that it disables well that way. >> >> /proc/cpuinfo isn't showing any change in processor clock to 400MHz, >> or anywhere below 1GHz. How can I confirm that it is underclocking? > > Try running powertop (yum install powertop), to see what amount of time > the processor is spending in each C-state. The frequency scaling should > be automatic as well. The C-7M is a strange beast, in that it already runs > at minimum voltage (0.798V) constantly, and it scales the frequency > continuously (since there are no corresponding voltage changes) as well. > > These are applied constantly --- the automatic power management > turns on the more aggressive suspend resume using the display controller. >
Hmmm... I see. So there won't be any interfaces to kernel ACPI power management like the rest of the laptop hardware out there? I thought that the XO 1.5 was going to support the regular ACPI stuff, hence my surprise. Best regards, Tiago Marques > Cheers, > wad > > _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel