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Thread: gtx 295 and 3 monitor problem in ubuntu 10.10 64bit

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    Join Date
    Nov 2012
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    Question gtx 295 and 3 monitor problem in ubuntu 10.10 64bit

    (Ubuntu 12.10 sorry for wrong title i cant edit that)
    Hi, this is my first linux experince and im learning a bit slowly. I need your help.

    i used this commands:
    sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
    sudo apt-get update
    sudo apt-get install nvidia-current

    and after restarting, ubuntu now working more good but my third monitor is not working and there is only two monitor in the desktop setting screen.

    nvidia-xconfig --query-gpu-info

    Number of GPUs: 2

    GPU #0:
    Name : GeForce GTX 295
    PCI BusID : PCI:4:0:0

    Number of Display Devices: 1

    Display Device 0 (DFP-0):
    EDID Name : Philips 244E
    Minimum HorizSync : 30.000 kHz
    Maximum HorizSync : 83.000 kHz
    Minimum VertRefresh : 56 Hz
    Maximum VertRefresh : 76 Hz
    Maximum PixelClock : 170.000 MHz
    Maximum Width : 1920 pixels
    Maximum Height : 1080 pixels
    Preferred Width : 1920 pixels
    Preferred Height : 1080 pixels
    Preferred VertRefresh : 60 Hz
    Physical Width : 520 mm
    Physical Height : 290 mm


    GPU #1:
    Name : GeForce GTX 295
    PCI BusID : PCI:5:0:0

    Number of Display Devices: 2

    Display Device 0 (DFP-0):
    EDID Name : Philips 231S
    Minimum HorizSync : 30.000 kHz
    Maximum HorizSync : 83.000 kHz
    Minimum VertRefresh : 56 Hz
    Maximum VertRefresh : 76 Hz
    Maximum PixelClock : 170.000 MHz
    Maximum Width : 1920 pixels
    Maximum Height : 1080 pixels
    Preferred Width : 1920 pixels
    Preferred Height : 1080 pixels
    Preferred VertRefresh : 60 Hz
    Physical Width : 510 mm
    Physical Height : 290 mm

    Display Device 1 (DFP-1):
    EDID Name : Samsung SyncMaster
    Minimum HorizSync : 30.000 kHz
    Maximum HorizSync : 81.000 kHz
    Minimum VertRefresh : 56 Hz
    Maximum VertRefresh : 75 Hz
    Maximum PixelClock : 150.000 MHz
    Maximum Width : 1680 pixels
    Maximum Height : 1050 pixels
    Preferred Width : 1680 pixels
    Preferred Height : 1050 pixels
    Preferred VertRefresh : 60 Hz
    Physical Width : 470 mm
    Physical Height : 300 mm


    i tried this command:
    nvidia-xconfig --base-mosaic --metamodes="GPU-0.DFP-0: 1680x1050+0+0, GPU-1.DFP-0: 1680x1050+3360+0, GPU-0.DFP-1: 1680x1050+5040+0"

    WARNING: Unable to locate/open X configuration file.

    Option "BaseMosaic" "True" added to Screen "Screen0".

    ERROR: Unable to write to directory '/etc/X11'.

    What can i do now? i can open "NVIDIA X Server Settings"
    but i dont know how to save
    where do i need to save and what file name?
    /usr/share/X11/xorg.conf.d ?
    please help
    best regards,
    Efe
    Last edited by efeefeefe; November 13th, 2012 at 12:09 AM.

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