[ltp] X200 Battery Life

Tino Keitel linux-thinkpad@linux-thinkpad.org
Mon, 27 Oct 2008 22:12:34 +0100


On Tue, Oct 28, 2008 at 01:03:55 +1030, Andrew Mason wrote:

[...}

> Pretty fantastic laptop, I'm very happy with it but would like around
> 2 1/2 hours if i can get it.

Just try to eliminate the usual suspects:

- disable USB (unload ehci_hcd and uhci_hcd)

- disable wireless LAN

- disable bluetooth

- dim the display

- stop sucking applications like firefox

As you already used powertop, I guess that you already use the ondemand
governor for CPU frequency scaling etc.

What power usage is reported in powertop? And what usage of the C
states in the above left part of the powertop output?

Regards,
Tino