Frédéric BOITEUX wrote: > Hello, > > I'm using powertop on my laptop since a long time and it helped me > a lot to expand its old battery's life. I also use a desktop which has > also a mobile processor (Pentium M) and tried recently to run powertop > on this computer : powertop doesn't show any C-States information > (P-states are here). I've looked a bit the DSDT table, and nothing is > defined inside for the processor. > I'm wondering if it's useful to try to lower number of > wake-ups/second (i.e. if it can lower consupmtion / temperature of the > CPU) or if it's useless as ACPI don't define low power C -states ? > And is there any hope to extend the ACPI DSDT table to add them, > knowing it's an old model no more supported by vendors ? >
being more idle, even without C-states, does help. At least to a point; the deeper the C-states you have the more it's important to be idle longer. Adding C-states, while not impossible, isn't all that easy either ..... especially on older systems (on newer ones it's relatively easy because hte interface got standardized) _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
