[ltp] T410 does not have a power state below C3

Pedro Ribeiro linux-thinkpad@linux-thinkpad.org
Mon, 6 Dec 2010 21:26:15 +0000

Hi all,

I've just received my shiny new T410 and I'm trying to set up
everything correctly.

One of the things I've noticed is that powertop shows that there is no
power state below C3.
I find this strange, since my T400 has C6 and its an older laptop.

I've already upgraded to the latest BIOS and I tried changing the
power settings in the BIOS to automatic from the defaults and nothing

One of the problems I've had with the T400 is that why an USB 1.1
device I could not hit a power state lower than C3 - however, I have
no such devices attached nor ohci_hcd loaded.

Any ideas what I can do or why this doesn't work?

Thanks for the help!