http://leaf.dragonflybsd.org/~hasso/acpi-cpu-update.patch
The patch brings in the latest acpi_cpu(4) code from FreeBSD adapted for DragonFly and our (old) acpica. This allows modern CPUs to use higher C states than C1 which as result makes a laptops with these CPUs run MUCH cooler (tested and measured ;). There is a drawback though - it removes acpi cpu frequency throttling - it wasn't usable though anyway on modern CPUs (it effectively slowed down my dual core cpu without _any_ effect to power usage and temperature ;). I'll probably work on brining it back at some point, but it's not my highest priority for now. So, unless someone shouts that acpi cpu throttling is absolutely necessary for him, I'll commit this patch in Friday. PS. There is no acpi_cpu(4) manpage in FreeBSD, we should probably create a one. -- Hasso Tepper
