video switching (centrino 2)

[Alberto Milone]

On Tue, 2008-07-15 at 11:19 +0100, Albert Vilella wrote:
> 
> My Sony Vaio (SZ1XP, 2 years old) already has a dual graphics card
> option, one with the "SPEED" option (nvidia)
> and the other with the integrated Intel graphics chip. When using
> Windows XP, one can switch to the other
> configuration, and a window will pop up saying something like:
> "you have chosen the STAMINA mode, please reboot". 
> I am not sure how Linux would be able to detect that, but it's not
> happening right now. Keith?
> I guess what the new Intel Centrinos will do is enable this as a hot
> switch, without requiring reboot.

This would be easy to do. Have a look at this post:
http://ubuntuforums.org/showpost.php?p=1368826&postcount=10

Regards,

Alberto