Xserver needs to run as "root" on Linux / was: Re: [Xorg] Server side widgets

[Alan Cox]

On Maw, 2004-07-13 at 13:03, Jon Smirl wrote:
> The idea of a kernel based login is that it is completely secure and
> can't be trojaned. A key that can't be intercepted is used to trigger
> login. The kernel catches this and clears/draws the screen in a way
> that can't be stopped. The keyboard is then directly read for the login
> data.

The only bit the kernel has to handle is SAK (the key itself)