Thanks for all that. It appears the problematic monitor is:
VGA-1 connected 1200x1920+0+0 left (normal left inverted right x axis y axis) 519mm x 324mm
1920x1200 59.95*+
My first suspicion is that "VGA" is the first problem there. The overdrawing of letters/pixels suggests a signal or mode problem that you would probably only encounter with an analog connection like VGA. So this could be a hardware/cable problem, or even a kernel driver problem. Not sure.
Thanks for all that. It appears the problematic monitor is:
VGA-1 connected 1200x1920+0+0 left (normal left inverted right x axis y axis) 519mm x 324mm
1920x1200 59.95*+
My first suspicion is that "VGA" is the first problem there. The overdrawing of letters/pixels suggests a signal or mode problem that you would probably only encounter with an analog connection like VGA. So this could be a hardware/cable problem, or even a kernel driver problem. Not sure.