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Old 05-09-09, 07:22 PM   #2
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Join Date: Jul 2005
Location: Munich
Posts: 910
Default Re: NVIDIA Dual Monitor Setup On Debian


Seems like you are having some kind of problems with the I2C connection for the
second display. You may try to force the card to use a certain resolution or timing
by applying the "CustomEDID" option: Acquire the EDID with nvidia-settings,
place the resulting file edid.bin into /etc/X11 and add Option "CustomEDID"
"DFP-1:/etc/X11/edid.bin" to the screen section.

Alternatively, you can use the "ExactModeTimingsDVI" option, i.e. your
monitor and screen sections for the first card might look like this:

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Dell"
    ModelName      "2007FPb"
    HorizSync       31-81
    VertRefresh     56-76
    # 1600x1200 @ 60.00 Hz (GTF) hsync: 74.52 kHz; pclk: 160.96 MHz
    Modeline "1600x1200"  160.96  1600 1704 1880 2160  1200 1201 1204 1242  -HSync +Vsync
    Option         "DPMS"

Section "Screen"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    Option "UseEDID" "False"
    Option "ExactModeTimingsDVI" "True"
    Option "TwinView" "True"
    Option "TwinViewOrientation" "RightOf"
    Option "MetaModes" "1600x1200,1600x1200"
    SubSection "Display"
        Depth 24
The timing for the modeline was calculated with "gtf".

More details:


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