Multi-monitor support broken Leap 42.1 Plasma 5.5.4?

English Hardware
1

I just installed the Plasma 5.5.4 update in Leap 42.1 and both of my monitors are now duplicated (i.e. - same thing displayed on both). Prior to this update, each display was distinct. In display settings, only a single monitor is displayed, but the “Primary display” dropdown lists both monitors (HDMI2 and VGA1).

xrandr shows:

Screen 0: minimum 8 x 8, current 1280 x 1024, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected primary 1280x1024+0+0 (normal left inverted right x axis y axis) 380mm x 300mm
   1280x1024      60.0 +   75.0* 
   1152x864       75.0  
   1024x768       75.1     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3  
   640x480        75.0     72.8     60.0  
   720x400        70.1  
VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 380mm x 300mm
   1280x1024      60.0 +   75.0* 
   1152x864       75.0  
   1024x768       75.1     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3  
   640x480        75.0     72.8     60.0  
   720x400        70.1  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Any suggestions for how to get my second monitor to be distinct again?

2

Figured it out. The two monitors were on top of each other in the “Display Configuration” window. Separating them by simply dragging the one on top fixed the problem.

3

I’m wondering if this an intended skeuomorphism, like Apple OS’s of old, or just a coincidence. To duplicate screens just plop one on top of the other. I’m curious what would happen if you partially overlap them, supposing it’s allowed. Would there be a duplicate portion of the desktop in both monitors? A blank portion in one?

4

Actually, it does. The overlapped space is duplicated between the two monitors. Also, if you separate the two monitors, it adds a proportional amount of virtual space between the physical monitors. Same if the monitors aren’t aligned vertically.

5

Thanks for the feedback. Works better than 13.2 here. When overlapping, only the overlapped part is shown in the second monitor.