Public bug reported:

Binary package hint: xorg

Wrong resolution detected with fresh install of Hardy on computer with nvidia 
geforce 2mx and a MAG innovision ta-772n monitor (crt).
Only four resolutions are available 640x480, 800x600, 400x300 and 320x240
At least 1024x768 should be available.
Monitor supports up to 1280x1024 at 85 Hz according to this link (in danish):
http://www.emb.dk/category.292.article.913

Besides that is the resolution that is available in windows as well.

Some info that might be of use:

Output of: sudo get-edid | parse-edid

parse-edid: parse-edid version 1.4.1
get-edid: get-edid version 1.4.1

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
        Function supported
        Call successful

        VBE version 300
        VBE string at 0x11110 "NVidia"

VBE/DDC service about to be called
        Report DDC capabilities

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
        Function supported
        Call successful

        Monitor and video card combination does not support DDC1 transfers
        Monitor and video card combination does not support DDC2 transfers
        0 seconds per 128 byte EDID block transfer
        Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
        Read EDID

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
        Function supported
        Call failed

The EDID data should not be trusted as the VBE call failed
Error: output block unchanged
parse-edid: IO error reading EDID

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Wrong resolution detected MAG ta-772n
https://bugs.launchpad.net/bugs/243965
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