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如何通过两个独立的 GPU 运行两个屏幕？

tag-icon • tag-icon nvidia graphics xorg multiple-monitors
如何通过两个独立的 GPU 运行两个屏幕？

我有两个 nVidia GTS 450 GPU，每个都带有一个 DVI、一个 HDMI 和一个 VGA 端口。我想要两个屏幕，都通过 DVI 端口运行。

我已经设置了我的xorg.conf文件/etc/X11/xorg.conf但它不起作用。

xorg.conf

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 361.42  (buildd@lgw01-18)  Tue Apr  5 14:33:28 UTC 2016

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Acer S220HQL"
    HorizSync       31.0 - 83.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTS 450"
    BusID          "PCI:1:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "GPU-661ea8ef-0beb-0b79-5958-62e5a84fb2f5.DVI-I-1: nvidia-auto-select +0+0, GPU-93c7ee63-95cd-dd42-a64e-d669451a0150.DVI-I-1: nvidia-auto-select +1920+0"
    Option         "MultiGPU" "Off"
    Option         "SLI" "off"
    Option         "BaseMosaic" "on"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

看起来 nVidia 忽略了我的 xorg 文件 - 当我打开 X 服务器设置程序时，我看到以下内容：

基本马赛克会自动关闭，并且第二个屏幕也被禁用。

我正在运行 Ubuntu GNOME 16.04，并且安装了 nVidia 驱动程序，版本361-updates。

我怎样才能让 nVidia 识别我的xorg.conf文件，并在两张卡上显示两个屏幕？

答案1

所以呃……这有点尴尬……我呃我的嗯。好吧。我会说的。我的 SLI 线松了。

我现在已经让它工作了。尽管我还必须将 xorg 文件从使用 DPF-0 屏幕更改为使用 DVI-I-0。

是的。

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