xrandr now lists my HDMI1 as VGA1

Disconnected my laptop from my screen for a few days, and then reconnected it.

When I plug in my HDMI cable, a VGA1 output appears instead of HDMI1. The extern screen also refuses to work at any resolution.

Output from xrandr when the cable is connected:

Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192
eDP1 connected primary 1920x1080+0+131 (normal left inverted right x axis y axis) 293mm x 165mm
   1920x1080     60.00*+  59.93    40.00  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1280x1024     60.02  
   1440x900      59.89  
   1280x960      60.00  
   1360x768      59.80    59.96  
   1152x864      60.00  
   1024x768      60.00  
   800x600       60.32    56.25  
   640x480       59.94  
VGA1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      60.00  
   800x600       60.32    56.25  
   848x480       60.00  
   640x480       59.94  
   1920x1200_60.00  59.88  
   1920x1080_60.00  59.96  
   1920x1080_30.00  29.95* 
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)

Is this expected behaviour? Can it be that I simply did not remember that it was VGA1 before as well?

Also, is it possible that my problem is related to the "0mm x 0mm"?

The last time I connected it, debian automatically found a working resolution. This time it just got stuck at 1024x768, but without any output on the display.