HDMI 显示器问题 t480s 和 18.04

HDMI 显示器问题 t480s 和 18.04

我有一台新的联想 t480s,上面安装了 Ubuntu 18.04。

当我连接外部辅助显示器飞利浦 278E 时,它会被检测到并出现在设置窗格中,但我似乎无法让它真正向其传输图像。

xrander 输出以下内容:

DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 connected 1920x1080+1920+0 (normal left inverted right x axis y 
axis) 598mm x 336mm
   1920x1080     60.00*+  74.97    60.00    50.00    59.94  
   1920x1080i    60.00    50.00    59.94  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x720      60.00    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    50.00    50.00  
   720x480       60.00    60.00    59.94    59.94    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94    59.94  
   720x400       70.08  

这让我很困惑,因为我只有一个 HDMI 端口。端口是否存在物理问题,还是其他原因导致的?

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