Here is the presentation I’ve given on 8th International Free Software Forum, at Porto Alegre. My first (really) public talk was really cool and I’ll show to you the video/photos when the organizers get it done.

…this is the subject of my talk which will be held at FISL (International Free Software Forum)  on this saturday, April 14th. I’ll post the feedbacks here.

Here is mail that I sent to xorg list a week ago. No one replied it :(

On IRC I talked with some developers and asked why they didn’t said nothing about my comments and the answer summarized was that no one is really interested on multiseat (well, at least on first world countries). Strangely, it really give me a good perspective and motivation to keep the work :)

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MPX brought to us a new idea of multiseat system.

Xat is an application that serves as an intermediary between the X clients and a multiheaded X server. Xat deceives its clients which have the impression that the server has only one head. The objective is that each head behaves like several distinct X servers. We can imagine a scenario where we have a xserver on display :1 with four screens (:1.0, :1.1, :1.2 and :1.3). After Xat being connected we have four displays (:2, :3, :4 and :5) and just one screen per display.

For some reason multiseat doesn’t call much attention in countries that are not of the third world. I can be radical, but in my humble opinion there is no reason to not apply this model of computation in certain types of environment (I’m talking about kiosks, Internet cafe, office, schools, etc). The money saved is enormous, and this is only one of the advantages that I am enumerating here.

There are a lot of solutions of multiseat and I like to separate it on two groups: (a) the hardware dependent and (b) hardware independent. The solutions of group (a) is the “backstreet ruby”, “evdev” and “faketty”. All of these starts severals instances of xservers and have a well known problem concerning the routing on VGA interface. There were efforts to implement VGA arbitration in the kernel before, but because of lack of community support, it never got in. Therefore, the solutions of group (a) works with a very limited graphics card vendors.

This is my first post and even my first blog. Well, the blog’s intention is to bring in evidence my interests about linux (and maybe music).