Subject: Re: power use while suspended?
To: Steven M. Bellovin <>
From: Chuck Swiger <>
List: netbsd-users
Date: 04/04/2006 19:29:58
Steven M. Bellovin wrote:
> I have a laptop (a Thinkpad T42) which seems to use a preposterous
> amount of power while suspended.  [ ... ]
> Some of the power presumably goes to maintaining memory state, and the
> machine does have 2G of RAM.  Could that be the only explanation?

If you have any USB devices attached, the system is probably providing bus power
to them even in standby mode.  Some BIOSes have an option to disable doing so in
the ACPI section.

I've heard rumors that some ThinkPads tend to leave the screen backlight on, also...