Linux Mint 19.2 中的雙顯示器設置奇怪問題

我正在使用NVIDIA Corporation GM206 GeForce GTX 960執行****Linux Mint 19.2 Cinnamon ( 4.15.0-70-generic kernel) 。我在雙顯示器設置方面遇到了一個奇怪的問題，包括兩台戴爾 P2212H顯示器，都帶有DVI和VGA埠。當我使用以下配置時，一切正常：

1. 第一台顯示器使用DVI-D <-> DVI-D電纜連接到我的 PC。
2. 第二台顯示器使用HDMI 到 VGA適配器和VGA <-> VGA電纜連接到我的 PC。

inxi -Gx
Graphics:
 Device-1: NVIDIA GM206 [GeForce GTX 960] vendor: Micro-Star MSI 
 driver: nvidia v: 435.21 bus ID: 01:00.0 
 Display: x11 server: X.Org 1.19.6 driver: nvidia 
 unloaded: fbdev,modesetting,nouveau,vesa 
 resolution: 1920x1080~60Hz, 1920x1080~60Hz 
 OpenGL: renderer: GeForce GTX 960/PCIe/SSE2 v: 4.6.0 NVIDIA 435.21 
 direct render: Yes 

xrandr
Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
  1920x1080     60.00*+
  1280x1024     75.02    60.02  
  1152x864      75.00  
  1024x768      75.03    60.00  
  800x600       75.00    60.32  
  640x480       75.00    59.94  
HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
  1920x1080     60.00*+  59.94  
  1280x1024     75.02    60.02  
  1280x720      59.94  
  1152x864      75.00  
  1024x768      75.03    60.00  
  800x600       75.00    60.32  
  640x480       75.00    59.94    59.93  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)

雙顯示器設置工作正常，但由於顯示質量存在明顯差異，我購買了HDMI <-> DVI-D電纜。為什麼如果我更換我的 PC 和第二台顯示器之間的電纜，我無法讓雙顯示器設置工作？看起來使用波紋管設置，我的電腦不再能夠檢測到第二台顯示器。

1. 第一台顯示器使用DVI-D <-> DVI-D電纜連接到我的 PC。
2. 第二台顯示器使用HDMI <-> DVI-D電纜連接到我的電腦。

xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
  1920x1080     60.00*+
  1280x1024     75.02    60.02  
  1152x864      75.00  
  1024x768      75.03    60.00  
  800x600       75.00    60.32  
  640x480       75.00    59.94  
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)

我可以確認HDMI <-> DVI-D電纜正常工作，因為我在另一台執行 Windows 10 的 PC 上對其進行了測試。有什麼建議嗎？

謝謝，克里斯

我可以使用 Mint 論壇的 @roblm 建議解決此問題。

sudo touch /etc/X11/xorg.conf

打開文件進行編輯：xed admin:///etc/X11/xorg.conf

添加這些行：

Section "ServerLayout"
  Identifier   "Layout0"
  Screen   0 "Screen0" 0 0 
EndSection

Section "Monitor"
  Identifier    "Monitor0"
EndSection

Section "Device"
  Identifier   "Device0"
  Driver   "nvidia"        
  BusID  "PCI:1:0:0"
  Option "ConnectedMonitor" "DFP, DFP"
EndSection

Section "Screen"
  Identifier   "Screen0"
  Device   "Device0"
  Monitor   "Monitor0"
  DefaultDepth   24
EndSection

引用自：https://unix.stackexchange.com/questions/553686