On Mon, 20 Feb 2006, Pavel Machek wrote: > Hi! > > > > Can you update the patch to fix this paragraph? > > > > > > Well, this is talking about suspend-to-disk... That is expected to > > > power down machine, without providing USB bus power. If box > > > suspends-to-disk and leaves USB up, something is wrong with the > > > machine. > > > > Oh, sorry, I didn't realize that. > > > > Isn't there an ACPI mode that powers down most things (including RAM) but > > is able to respond to wakeup events? I can't remember the mode's name, > > except that it's almost certainly "S" followed by some meaningless number > > followed by some unhelpful word. :-) Since USB plug/unplug is potentially > > a wakeup event, such a mode must provide suspend power to the USB > > controller. > > Maybe S4 does that, but I'm not sure... > > > Does swsusp still support these not-completely-powered-off modes? > > Yes. echo platform > /sys/power/disk. So if you did that, you could suspend-to-disk while leaving USB up, right? Without anything being wrong with the machine. Alan Stern
