Emc vs modern lcd monitors

[gene heskett]

Greetings all;

One of the problems that was confusing me recently is that I had replaced 
the old samsung crt monitor with a much newer cheap AOC lcd that runs at 
1360x724 at best, but under the vesa driver on an ati x1650 video card, it 
apparently is running in 1024x768.  This results in a pixel that is far 
from square unless I use a button on the monitor which shrinks the display 
sideways, leaving 2" wide black stripes on the sides.

From Xorg.0.log:

(II) VESA(0): SAMSUNG: Using hsync range of 30.00-81.00 kHz
(II) VESA(0): SAMSUNG: Using vrefresh range of 55.00-75.00 Hz
(II) VESA(0): SAMSUNG: Using maximum pixel clock of 90.00 MHz
(II) VESA(0): Not using mode "1360x768" (no mode of this name) <---native
(II) VESA(0): Not using built-in mode "1280x1024" (no mode of this name)
(II) VESA(0): Not using built-in mode "1280x1024" (no mode of this name)
(II) VESA(0): Not using built-in mode "1280x1024" (no mode of this name)
(II) VESA(0): Not using mode "832x624" (no mode of this name)
(II) VESA(0): Not using built-in mode "1920x1440" (width too large for 
virtual size)
(II) VESA(0): Not using built-in mode "1856x1392" (width too large for 
virtual size)
(II) VESA(0): Not using built-in mode "1600x1200" (width too large for 
virtual size)
(II) VESA(0): Not using built-in mode "1400x1050" (width too large for 
virtual size)
(II) VESA(0): Not using built-in mode "1152x864" (width too large for 
virtual size)
(II) VESA(0): Not using built-in mode "640x400" (no mode of this name)
(II) VESA(0): Not using built-in mode "640x400" (no mode of this name)
(II) VESA(0): Not using built-in mode "640x350" (no mode of this name)
(II) VESA(0): Not using built-in mode "512x384" (no mode of this name)
(II) VESA(0): Not using built-in mode "320x240" (no mode of this name)
(II) VESA(0): Not using built-in mode "320x200" (no mode of this name)
(II) VESA(0): Not using built-in mode "320x200" (no mode of this name)
(--) VESA(0): Virtual size is 1024x768 (pitch 1024)  <--chosen?
(**) VESA(0): *Built-in mode "1024x768"
(**) VESA(0): *Built-in mode "800x600"
(**) VESA(0): *Built-in mode "720x400"
(**) VESA(0): *Built-in mode "640x480"
(**) VESA(0):  Built-in mode "1024x768"
(**) VESA(0):  Built-in mode "800x600"
(**) VESA(0):  Built-in mode "640x480"
(**) VESA(0): Display dimensions: (410, 230) mm
(**) VESA(0): DPI set to (63, 84)   <---yikes!

That then is a smaller image than I was getting on the old 15" tube 
monitor, with a moderately high level of "suckage"

Since true 4x3 monitors are about as plentiful as hens teeth these days, 
and the axis interface seems to ignore this unsquare pixel, is there a way 
I can fix this that anyone knows about short of just using the center 
2/3rds of the screen via the button on the monitor?

Thanks.

Cheers, gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
It is Fortune, not Wisdom, that rules man's life.