Ubuntu16不能检测到第二个屏幕，而windows 10可以检测到第二个屏幕。

Question

今天刚刚安装了新的GPU并更新了Nvidia驱动程序。无法检测到与VGA连接的第二监视器。回到Win10之后，我修改了这两个屏幕的设置并更新了驱动程序，它正常工作。有人能告诉我怎么解决这个问题吗？

• 系统: Ubuntu 16 64位
• GPU: Nvidia 1070
• 驱动程序: nvidia-367 (由apt-get install nvidia-367安装，以前的驱动程序在安装新驱动程序之前已经卸载)

下面是xrandr的输出：

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080     60.00*+
   1680x1050     59.95 
   1440x900      74.98    59.89 
   1280x1024     75.02    60.02 
   1280x960      60.00 
   1152x864      75.00 
   1024x768      75.03    70.07    60.00 
   800x600       75.00    60.32    56.25 
   640x480       75.00    72.81    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)

nvidia-settings -q dpys的输出：

8 Display Devices on yingweizhou-Vig800S:0

    [0] yingweizhou-Vig800S:0[dpy:0] (DVI-D-0) (connected, enabled)

      Has the following names:
        DFP
        DFP-0
        DPY-EDID-11a65174-523d-8b45-29ca-662f95bc1e15
        DPY-0
        DVI-D-0

    [1] yingweizhou-Vig800S:0[dpy:1] (HDMI-0)

      Has the following names:
        DFP
        DFP-1
        DPY-1
        HDMI-0

    [2] yingweizhou-Vig800S:0[dpy:2] (DP-0)

      Has the following names:
        DFP
        DFP-2
        DPY-2
        DP-0

    [3] yingweizhou-Vig800S:0[dpy:3] (DP-1)

      Has the following names:
        DFP
        DFP-3
        DPY-3
        DP-1

    [4] yingweizhou-Vig800S:0[dpy:4] (DP-2)

      Has the following names:
        DFP
        DFP-4
        DPY-4
        DP-2

    [5] yingweizhou-Vig800S:0[dpy:5] (DP-3)

      Has the following names:
        DFP
        DFP-5
        DPY-5
        DP-3

    [6] yingweizhou-Vig800S:0[dpy:6] (DP-4)

      Has the following names:
        DFP
        DFP-6
        DPY-6
        DP-4

    [7] yingweizhou-Vig800S:0[dpy:7] (DP-5)

      Has the following names:
        DFP
        DFP-7
        DPY-7
        DP-5

这就是我的桌面现在的样子：

第二个屏幕与VGA连接，而工作屏幕通过DVI端口与GPU连接。奇怪的是它在Windows 10中工作。

我卸载367驱动程序，然后安装370，但看起来仍然是一样的。

这就是它在windows中的样子：dropbox链接，因为大于2米.

Answer 1

我通过用HDMI电缆连接第二个屏幕来解决我的问题。我认为这是最简单的解决办法..。谢谢各位的建议，现在我可以轻松地继续工作了。