Re: Re: [linux-usb-devel] Fwd: USB suspending
Pavel Machek <[email protected]>
| Newsgroups | gmane.linux.power-management.general,gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Fri 2007-10-05 18:35:18, Lukas Hejtmanek wrote: > On Fri, Oct 05, 2007 at 11:25:11AM -0400, Alan Stern wrote: > > > But power consumption on these ports is minimal for suspended devices, > > > so it is a bad idea. > > > > Right. Power consumption is even smaller on ports with no devices > > plugged in. > > For example, IBM ThinkPad T60 powers off all USB ports when hcd-uhci module is > unloaded. My ASUS M6A does not, it does not also in Windows XP though. > > I still wonder why suspended machine consumes about 2Wh in S-T-R while the IBM > consumes about 0.2Wh. Video card? Leave machine sleeping for a while, then open it and search for warm components...? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html