$ sudo get-edid | parse-edid  
This is read-edid version 3.0.1. Prepare for some fun.
Attempting to use i2c interface
Looks like no busses have an EDID. Sorry!
Attempting to use the classical VBE interface

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

        VBE version 300
        VBE string at 0xc01f0 "AMD ATOMBIOS"

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 supports 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 successful

Looks like VBE was successful. Have a good day.
Checksum Correct

Section "Monitor"
        Identifier "W2261"
        ModelName "W2261"
        VendorName "GSM"
        # Monitor Manufactured week 4 of 2011
        # EDID version 1.3
        # Digital Display
        DisplaySize 480 270
        Gamma 2.20
        Option "DPMS" "true"
        Horizsync 30-83
        VertRefresh 56-75
        # Maximum pixel clock is 150MHz
        #Not giving standard mode: 1680x1050, 60Hz
        #Not giving standard mode: 1280x1024, 60Hz
        #Not giving standard mode: 1280x960, 60Hz
        #Not giving standard mode: 1152x864, 75Hz
        Modeline        "Mode 0" 138.50 1920 1968 2000 2080 1080 1083 1088 1111 +hsync -vsync 
        Modeline        "Mode 1" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync 
EndSection