[ltp] X60 - power consumption differences

[Tino Keitel]

On Wed, Apr 09, 2008 at 22:32:46 +0200, Nils Faerber wrote:
> Hi!
> I just found somthing that I wanted to share...
> If I boot up my X60 and toggle some settings I get power consumption
> down to about 10.3W with Wifi enabled and associated.
> If I hibernate (suspend to disk) and resume and toggling the same
> settings the consumption is more than 3W more, i.e. 13W to 13.5W!
> If I use suspend to RAM instead of suspend to disk the power consumption
>  stays the same.
> So hibernate (aka s2disk) is somewhat broken :(
> I have no idea how to debug this.

You could try to:

- hibernate without X started and with DRM kernel modules unloaded

- remove all USB host drivers (ehci_hcd, uhci_hcd)

- remove all wifi specific modules

Regards,
Tino