xrandr not listing modes in xorg.conf

Solution 1:

It isn't enough to list the resolutions in the Screen section of xorg.conf. If the monitor doesn't advertise that mode, then it will ignore the mode.

Looking at the log file, you can see the mode that the video driver has queried the display for the list of modes that it supports, which match up with the output of xrandr (ignoring the doublescan modes that the driver doesn't support).

Assuming the panel actually can support the extra modes you've listed, you will need to add ModeLine directives to the Monitor section describing them, and possibly add the following to the Device section:

Option "Monitor-LVDS1" "Monitor0"

So that it knows that the monitor section refers to the LVDS output.

Determining what the required timings are will be the difficult part. If you know that these modes exist because you used them under Windows, you might be able to use the instructions from the Obtaining modelines from Windows program PowerStrip section on this wiki page:

http://www.x.org/wiki/FAQVideoModes