[Open-graphics] Linux kernel graphics subsystem changes

[Lourens Veen]

On Sunday 24 June 2007 18:39, Attila Kinali wrote:
> On Mon, 28 May 2007 10:39:15 +0800
>
> "Rogelio Serrano" <rogelio.serrano at gmail.com> wrote:
> > On 5/28/07, Attila Kinali <attila at kinali.ch> wrote:
> > > But these days it is very hard to find anyone who actually
> > > knows X11....
> >
> > Ok if you have seen the freedesktop pages somebody is thinking of
> > moving x11 to dbus. now thats totally unacceptable.
>
> Any url with that?
> But even then, i wouldn't believe it. Who ever has said that
> has no understanding whatsoever what X11 and what D-Bus is.
> Both are in their needs and implementations quite ortogonal.

Well, if the kernel uses DBus to notify userland of changes in the 
hardware configuration, then it makes perfect sense for the X server to 
listen to the kernel via DBus and update its input device configuration 
accordingly. You obviously don't want to do the connection between X 
server and X client via DBus, but between the server and the hardware? 

If the kernel already provides hardware drivers, why should the X server 
duplicate all that? I think the whole idea of X talking to the hardware 
directly is ugly from an architecture point of view. It may be 
necessary for performance, but it's not pretty. Ideally, the kernel 
does hardware access and multiplexing, and the X server is just a 
userland daemon that talks to the kernel one side, and to the clients 
on the other.

Lourens
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