In article <20050104215942.C4FE43BFF1C@berkshire.machshav.com>,
Steven M. Bellovin <smb@cs.columbia.edu> wrote:
>I'm having trouble trying to configure X on a new Dell 8400 with a flat 
>panel display.  I ran X -configure; it mostly got things right, but 
>doesn't seem able to figure out the 1600x1200 resolution that the 
>adapter, the screen, and -- "the OS shipped with the box" -- can all 
>handle.
>
>I've put the Xlog at http://www.machshav.com/~smb/Xlog; I think the 
>problem is that 1600x1200 is described as a "future mode".  I assume I 
>need a Modes section; what I don't know is what all the mystical 
>numbers should be.  I mean -- I don't even know what a DotClock or an 
>hdisp are, let alone what values I should supply....
>

ModeLine "1600x1200" ?? 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync

Where ?? is the refresh rate supported by your flat panel. Probably something
like 60-80. You can use xvidtune to make this better once it works.

Don't blame me if you end up with smoking parts :-)

christos