mode find by xorg and xranrd

[Bernard Siaud alias Troumad]

Hello

xorg found this mode :
[troumad at iutb-geii-ls6][~]$ xrandr
Screen 0: minimum 320 x 200, current 2306 x 1024, maximum 2390 x 1536
VGA connected 1280x1024+1026+0 (normal left inverted right) 0mm x 0mm
   1600x1200      60.0 
   1600x1024      60.0 
   1400x1050      60.0 
   1280x1024      60.0*
   1280x960       60.0 
   1360x768_60.00   60.0 
   1152x864       75.0 
   1024x768       70.1     60.0 
   832x624        74.6 
   800x600        72.2     75.0     60.3     56.2 
   640x480        72.8     75.0     59.9 
LVDS connected 1024x768+0+230 (normal left inverted right) 304mm x 228mm
   1024x768       60.0*+
   800x600        60.3 
   640x480        59.9 
TMDS-1 disconnected (normal left inverted right)
TV disconnected (normal left inverted right)

And I have problem with VGA mode :
   1600x1200      60.0 
   1600x1024      60.0
It's don't work !

Why have xorg found this mode ?
Why xorg becomme with   1024x768       70.1     60.0 mode ?
Why xra,dr --output VGA --auto give the    1360x768_60.00   60.0 mode ?

-- 
Amicalement vOOotre, Troumad Alias Bernard SIAUD, http://troumad.org
N'envoyez que des documents avec des formats ouverts, comme 
http://fr.openoffice.org
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