Question

3

Nvidia Dual Displays not being detected

rated 0 times [ 3] [ 0] / answers: 1 / hits: 27138 / 2 Years ago, sun, march 13, 2022, 3:34:22

I just installed Ubuntu for the first time, downloaded 11.04 and updated to 11.10.

I have a setup with a NVidia 7600GT Graphics Card, with DVI-Out and VGA-Out. I have two displays connected to those plugs, and they work perfectly on windows.
I updated to NVidia's latest driver with:

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates  

sudo apt-get update   

sudo apt-get install nvidia-current

and i still can't get Ubuntu to recognize i have two displays...

Can someone help me please?

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dresuitable

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2 Years ago

answered 2 Years ago otputler · Accepted Answer

To configure your two monitors manually,

stop your display manager:

sudo stop gdm

if the process is not found, try ps -ax | grep dm to look for your manager.

press:

Alt+Ctrl+F1

and log in. After that create xorg.conf file:

sudo Xorg -configure

The contents of the file should be written on the screen and the path to the created file should be written also (path depends on how You are logged, as super user or as Your user and just using sudo command)

Edit created xorg.conf.new (it is created instead of xorg.conf, but it is the same):

sudo gedit xorg.conf.new

You should find sections responsible for screen card and monitor. In my case these are:



Section "Monitor"

    #DisplaySize      380   300

    Identifier   "Monitor0"

    VendorName   "AOC"

    ModelName    "919"

    HorizSync    30.0 - 80.0

    VertRefresh  55.0 - 75.0

    Option      "DPMS"

EndSection



Section "Device"

    Identifier  "Card0"

    Driver      "radeon"

    VendorName  "ATI Technologies Inc"

    BoardName   "Radeon 2100"

    BusID       "PCI:1:5:0"

EndSection



Section "Screen"

    Identifier "Screen0"

    Device     "Card0"

    Monitor    "Monitor0"

    SubSection "Display"

        Viewport   0 0

        Depth     1

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     4

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     8

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     15

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     16

    EndSubSection

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

Copy Your monitor and screen sections and paste it somewhere in that file, and name (change Identifier) them Monitor1 and Screen1.

In Screen section corresponding to Screen1 change used monitor to Monitor1

Monitor "Monitor1"

reboot and then try to go to system->preferences->screen and detect monitors.