我有一台通过 HMDI 连接到笔记本电脑的显示器。然后我通过 HDMI 将它连接到电视上观看电影。当我将它重新连接到显示器时，显示器仅显示：
Cable not connected
输出xrandr显示：
Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 32767 x 32767
LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1366x768 59.9*+
1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 598mm x 336mm
1920x1080 60.0*+ 50.0 59.9
1920x1080i 60.1 50.0 60.0
1680x1050 59.9
1280x1024 75.0 60.0
1440x900 59.9
1280x960 60.0
1280x800 59.9
1152x864 75.0
1280x720 60.0 50.0 59.9
1440x576i 50.1
1024x768 75.1 70.1 60.0
1440x480i 60.1 60.1
832x624 74.6
800x600 72.2 75.0 60.3 56.2
720x576 50.0
720x480 60.0 59.9
640x480 75.0 72.8 66.7 60.0 59.9
720x400 70.1
DP1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
据我所知，这意味着笔记本电脑可以识别第二个屏幕。当我查看“桌面切换器”时，我也可以看到桌面。
有人有想法吗？
多谢