Deepin与UOS多屏显示输出问题

一、简介

• 习惯笔记本合盖使用，但是笔记本合盖后其实屏幕还在使用，导致很内容跑去了笔记本屏幕，操作就出问题了

1.1、目的

• 关闭笔记本屏幕，让外接多屏显示器做输出

二、方法

2.1、查看显示器列表

• 我这里第一个是笔记本自带屏幕，下面2个是外接屏幕

akiraka@akiraka:~$ sudo xrandr -q
请输入密码:
验证成功
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP connected primary 1920x1080+0+0 309mm x 173mm
   1920x1080     60.00*+  40.00  
   1680x1050     60.00  
   1280x1024     60.00  
   1440x900      60.00  
   1280x800      60.00  
   1280x720      60.00  
   1024x768      60.00  
   800x600       60.00  
   640x480       60.00  
HDMI-A-0 connected 1920x1080+0+0 598mm x 336mm
   1920x1080     60.00*+  74.97    50.00    59.94  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x800      60.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
DisplayPort-0 disconnected
DisplayPort-1 connected 1920x1080+0+0 598mm x 336mm
   1920x1080     60.00*+  74.97    50.00    59.94  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x800      60.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08

2.2、关闭笔记本屏幕

• 我这里是 eDP 是笔记本屏幕关闭这个就可以了

# 通过该命令关闭笔记本屏幕，这样就只留了2个外接显示器
akiraka@akiraka:~$ xrandr --output eDP --off