So, I got the
Lenovo X380 with
german (QWERTZ) keyboard layout where
Manjaro Gnome 18.0 is installed.
I can switch windows to the left monitor using Super+L Shift+ left. But I can not use Super+L Shift+ right to switch the window to the right.
During research I found out that the keyboard layout
without dead keys does not fit my layout totally. I only have one Super on the left but none on the right. Also I found out that Super+R Shift+ left / right is working.
In the shortcuts settings the system does not distinguish between L Shift and R Shift. Probably I am using the wrong keyboard layout?