When I invert my display (
xrandr -o inverted), the display goes black. This is in contrast to orienting the display to left (
xrandr -o left), to right (
xrandr -o right) or to normal (
xrandr -o normal).
When I try to orient the display to normal from this black/inverted state (
xrandr -o normal) directly, the display remains black. When I change to another virtual console (
F2) and then change back (
F7), the display appears again (inverted), but does not orient to normal on executing the command
xrandr -o normal.
What's going on and how could this obstinate blackout behaviour be addressed?
I'm running Ubuntu 15.04 with Unity.