The Linux driver implementer’s API guide » CPU and Device Power Management; View page source; CPU and Device Power Management ...
At long last, it looks like there is an adequate solution to the Active State Power Management (ASPM) problem in the Linux kernel, a.k.a. the well-known and wide-spread power regression in the Linux 2.6.38 kernel, which has been causing many laptops to go through significantly more power than they should.This is not another workaround, but rather a behavioral change in the kernel to better ...