> > > From the user's point of view, the differences between S4 and S5 amount to > > > just these: power consumption and availability of wakeup devices. > > > > And the fact that in S4 there's always a resumable OS image. > > Are you sure? What happens if the OSPM writes a defective, non-resumable > OS image and then goes into S4? The ACPI spec omits all such error transitions. As well as a fair number of non-error ones ... like how to enter G3. > What happens if the OS writes a resumable OS image and goes into S4, and > then the user unplugs the computer, plugs it back in, and turns the power > switch on? At that point the system must be in S5 (by definition), but > there's still a resumable image. As allowed by the chapter 2 text I pointed out earlier. S4 *always* has such an image. - Dave _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
