ubuntu 19.04 未检测到外接显示器

ubuntu 19.04 未检测到外接显示器

我刚刚升级到 19.04,连接了 2 个显示器的扩展坞将不再显示。这是我的 xrandx 输出:

    Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
    eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
       1920x1080     60.00 +  59.97*   59.96    59.93  
       1680x1050     59.95    59.88  
       1600x1024     60.17  
       1400x1050     59.98  
       1600x900      59.99    59.94    59.95    59.82  
       1280x1024     60.02  
       1440x900      59.89  
       1400x900      59.96    59.88  
       1280x960      60.00  
       1440x810      60.00    59.97  
       1368x768      59.88    59.85  
       1360x768      59.80    59.96  
       1280x800      59.99    59.97    59.81    59.91  
       1152x864      60.00  
       1280x720      60.00    59.99    59.86    59.74  
       1024x768      60.04    60.00  
       960x720       60.00  
       928x696       60.05  
       896x672       60.01  
       1024x576      59.95    59.96    59.90    59.82  
       960x600       59.93    60.00  
       960x540       59.96    59.99    59.63    59.82  
       800x600       60.00    60.32    56.25  
       840x525       60.01    59.88  
       864x486       59.92    59.57  
       800x512       60.17  
       700x525       59.98  
       800x450       59.95    59.82  
       640x512       60.02  
       720x450       59.89  
       700x450       59.96    59.88  
       640x480       60.00    59.94  
       720x405       59.51    58.99  
       684x384       59.88    59.85  
       680x384       59.80    59.96  
       640x400       59.88    59.98  
       576x432       60.06  
       640x360       59.86    59.83    59.84    59.32  
       512x384       60.00  
       512x288       60.00    59.92  
       480x270       59.63    59.82  
       400x300       60.32    56.34  
       432x243       59.92    59.57  
       320x240       60.05  
       360x202       59.51    59.13  
       320x180       59.84    59.32  
    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 disconnected (normal left inverted right x axis y axis)

答案1

我遇到了同样的问题:

  • 戴尔 XPS 9370
  • 戴尔 TB16 扩展坞
  • 戴尔 UPD2516 显示器

从 18.10 升级到 19.04 后未检测到监视器。重新启动无法修复此问题。之后重新连接(电缆)从笔记本电脑到扩展坞,再从扩展坞到显示器,它又可以工作了...不确定这是扩展坞、显示器还是笔记本电脑的问题。

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