Comment 14 for bug 94994

I've got ddc2 working but not ddc1. One monitor is 19" WideScreen LCD (DVI), second is 16" Standard LCD (VGA). Ubuntu Linux 7.10 Gutsy Gibbon Official Release. Main GPX: ATI Radeon X1300 PCI Dual-DVI/VGA Graphics Card. Secondary (Not being used): Dell/Intel 865 Onboard Video VGA Chipset.

My EDID data from the readout:

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 0xc0248 "ATI 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

parse-edid: EDID checksum passed.

        # EDID version 1 revision 3
Section "Monitor"
        # Block type: 2:0 3:fd
        # Block type: 2:0 3:fc
        Identifier "HW191D"
        VendorName "HSD"
        ModelName "HW191D"
        # Block type: 2:0 3:fd
        HorizSync 30-80
        VertRefresh 49-75
        # Max dot clock (video bandwidth) 140 MHz
        # Block type: 2:0 3:fc
        # Block type: 2:0 3:ff
        # DPMS capabilities: Active off:yes Suspend:no Standby:no

        Mode "1440x900" # vfreq 59.887Hz, hfreq 55.935kHz
                DotClock 106.500000
                HTimings 1440 1520 1672 1904
                VTimings 900 903 909 934
                Flags "+HSync" "-VSync"
        EndMode
        # Block type: 2:0 3:fd
        # Block type: 2:0 3:fc
        # Block type: 2:0 3:ff
EndSection