On Dec 16 2010, Phillip Susi wrote: > Powernowd used to accomplish the same thing as ACPI P-states by > directly manipulating the amd k8 cpu registers.
No, it doesn't. It is just a userspace governor and, despite the name, it is not tied to AMD cpus. > The kernel now has drivers to perform frequency control using either > ACPI, or the amd or intel cpu specific registers. Unless you happen to have a CPU (Intel, BTW) that can only have its frequency scaled using something other than ondemand/conservative in their stock form and you have to use the P4 clock modulation. I have some patches to the ondemand cpufreq regulator, but it will need a lot of fine tuning to make ondemand work (if at all). OTOH, using powernowd usually works OK for my computer. And I am not even talking about some other architectures (e.g., PowerPC) where there is some support for frequency scaling, but where there is no ACPI. See http://bugs.debian.org/609638 for instance. I think that I may not (yet) be willing to adopt it, but I am sure willing to co-maintain it or make the occasional QA upload from time to time, so that I can keep things in shape and close some of the most pressing bugs. Regards, -- Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8 http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
