Re: F11 ok, Only 800x600 video with F12.

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On Tue, Feb 09, 2010 at 13:16:20 -0700,
  [email protected] wrote:
> Screen 0: minimum 320 x 200, current 800 x 600, maximum 4096 x 4096
> VGA-0 connected 800x600+0+0 (normal left inverted right x axis y axis) 0mm x 
> 0mm
>    800x600        60.3*    56.2
>    640x480        59.9
> DVI-I-0 disconnected (normal left inverted right x axis y axis)

The video driver did not think the other modes dectected in X11 were usable.
This might because of lack of proper EDID or some other reason.

>         Modes       "1280x1024" "1024x768" "800x600" "640x480"

This only says which modes you want to try and use. A combination of this
list and the detected modes is used to get the mode used by default.

If you know that other modes are valid and want to allow them to be used, you
need to add something like this (appropriate for both your video card and
your monitor or you might toast them):

Section "Monitor"
	Identifier   "Monitor0"
	ModelName    "NEC MultiSync LCD2010X"
	HorizSync    31.0 - 80.0
	VertRefresh  56.0 - 85.0
	Modeline "1280x1024_70.00"  129.00  1280 1368 1504 1728  1024 1027 1034 1069 -hsync +vsync
	Option	    "dpms"

You can use cvt or other programs to generate modelines for particular
resolutions and refresh rates. (Also you can generate different ones for
LCD and CRT displays. I don't understand all about that, just that there
are differences.) You want to make sure the sync and refresh rates aren't
out of spec for your hardware.
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