VMware中Ubuntu20.04下Nvidia显卡连接外屏显示教程

我们要用显卡坞上的视频接口HDMI或者DP来输出（显卡端口输出），因为直接通过显卡端口输出可以节省显卡与cpu的交流，

首先找到你的显卡PCI地址：

lspci

找到这一行：

03:00.0 VGA compatible controller: NVIDIA Corporation TU104 [GeForce RTX 2070 SUPER] (rev a1)

03就是地址，十六进制表示，不过03的十进制还是03。

创建文件夹：

sudo mkdir /etc/X11/xorg.conf.d/

然后创建文件：

sudo vim /etc/X11/xorg.conf.d/nvidia.conf

在文件中粘贴，保存，退出：

Section "Device"
		Identifier      "Videocard0"
		BusID           "PCI:03:0:0" # 把03换成你的地址
		Driver          "nvidia"
		VendorName      "NVIDIA Corporation"
		Option          "AllowEmptyInitialConfiguration"
		Option          "AllowExternalGpus"
EndSection

最后，修改10-nvidia.conf文件

 sudo vim /usr/share/X11/xorg.conf.d/10-nvidia.conf 

原本是这样：

# This xorg.conf.d configuration snippet configures the X server to
# automatically load the nvidia X driver when it detects a device driven by the
# nvidia-drm.ko kernel module.  Please note that this only works on Linux kernels
# version 3.9 or higher with CONFIG_DRM enabled, and only if the nvidia-drm.ko
# kernel module is loaded before the X server is started.

Section "OutputClass"
   Identifier     "nvidia"
   MatchDriver    "nvidia-drm"
   Driver         "nvidia"    
EndSection

加入Option "AllowExternalGpus" "true"：

# This xorg.conf.d configuration snippet configures the X server to
# automatically load the nvidia X driver when it detects a device driven by the
# nvidia-drm.ko kernel module.  Please note that this only works on Linux kernels
# version 3.9 or higher with CONFIG_DRM enabled, and only if the nvidia-drm.ko
# kernel module is loaded before the X server is started.

Section "OutputClass"
   Identifier     "nvidia"
   MatchDriver    "nvidia-drm"
   Driver         "nvidia" 
   Option "AllowExternalGpus" "true"
EndSection

按esc退出，输入:wq退出；

sudo reboot；

等开机画面过后，你就可以看到你的外接屏幕上有画面了。