ubuntu18.04主要选择Intel或Nvidia不允许我使用双显示器

问题描述

这是东西：

• 如果我输入prime-select intel，重新启动并调整bios>graphics>IGD，Ubuntu将忽略nvidia并仅显示VGA监视器。此外，nvidia-smi无法正常工作，显示：NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

• 如果我输入prime-select nvidia，重新启动，调整bios>graphics>auto，ubuntu将忽略英特尔并仅显示HDMI监视器。 nvidia-smi效果很好。

如何解决该问题并使用双显示器？

我将我的桌面设置添加到下面的prime-select intel下：

henry@henry-PMBSB09A-Samsung-DeskTop:~$ sudo lshw -C display
  *-display UNCLAIMED       
       description: VGA compatible controller
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller cap_list
       configuration: latency=0
       resources: memory:ee000000-eeffffff memory:d0000000-dfffffff memory:e0000000-e1ffffff ioport:e000(size=128) memory:ef000000-ef07ffff
  *-display
       description: VGA compatible controller
       product: HD Graphics 530
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 06
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:127 memory:ed000000-edffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff

henry@henry-PMBSB09A-Samsung-DeskTop:~$ xrandr
Screen 0: minimum 320 x 200,current 1920 x 1080,maximum 8192 x 8192
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm
   1920x1080     60.00*+
   1680x1050     59.95  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.89  
   1366x768      59.79  
   1280x800      59.81  
   1152x864      75.00  
   1280x720      60.00  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32  
   640x480       75.00    72.81    66.67    59.94  
   720x400       70.08  

解决方法

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