升级后如何修复双显示器设置？
我
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.5 LTS
Release: 16.04
Codename: xenial
带显卡
$ sudo lspci|grep VGA
01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [NVS 300] (rev a2)
升级后，我的双显示器停止工作。我安装了以下驱动程序，但仍然没有成功
$ nvidia-smi
+------------------------------------------------------+
| NVIDIA-SMI 340.107 Driver Version: 340.107 |
|-------------------------------+----------------------+----
我应该说一下，我用了这个糟糕的适配器糟糕的适配器
我的 xrandr 输出是
$ xrandr
Screen 0: minimum 8 x 8, current 1680 x 1050, maximum 8192 x 8192
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 59.88*+ 59.95
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
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)
我通过 dist-upgrade 多次重启系统，安装 Nvidia 驱动程序后，如何再次使用双显示器设置？更新期间出了什么问题？
更新 我总是对 Ubuntu 的工作方式感到惊讶。我没有动任何东西，突然在重新启动后，双显示器设置又恢复了工作。我对 Ubuntu 的工作方式感到惊讶和震惊。我的新 xrandr 输出
Screen 0: minimum 8 x 8, current 3360 x 1050, maximum 8192 x 8192
DP-0 disconnected primary (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 59.88*+ 59.95
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
DP-3 connected 1680x1050+1680+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 59.88*+ 59.95
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)