VESA modes

[Net Llama!]

On Mon, 19 Mar 2007, Jorge Almeida wrote:
> I could use some help to understand what VESA standard modes are, and
> how to use such beasts. From what [I think] I understood, the xorg server has
> built-in knowledge about VESA modes. Hence, instead of writing a line like
> ModeLine "1280x1024" 108.0   1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
> in Section "Monitor" of xorg.conf, and then writing
> Modes "1280x1024"
> in Section "Screen", SubSection "Display",
> one could simply write the latter, because the above modeline happens to
> be one of the VESA modes.
> What confuses me no-end is that the label "1280x1024" is associated with
> several modelines, corresponding to different refresh rates. So, how
> does the server know what to do? In KDE, one can choose a frequency in
> the Control Panel, but that must be a front-end to something more
> basic...

X has its own built in modes, which are separate and unrelated to VESA 
modes.  The X driver that you're using will determine which modes get 
validated, and how they are named.  Generally speaking, starting X with 
the following command:
startx -- -logverbose 6

will show you alot more information about the mode validation process. 
The X driver that you use will determine whihc information appears.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lonni J Friedman                        netllama at linux-sxs.org
LlamaLand				http://netllama.linux-sxs.org