So far I could position any window using the Ctrl + Alt + [num-pad-key] on the screen. Even with multiple presses I could change the size in the corner/side.
Now with 17.10 on Xorg the Ctrl + Alt + [num-pad-key] positions the window on the whole desktop rather than a single screen. That is very useless to me with a 3 screen setup.
Any idea how to make these shortcuts work per screen and that they scale the window?
On Ubuntu 18.04.1 LTS, simply install the Put Windows Gnome extension through Ubuntu Software Center to restore the window positioning via numpad. No further settings changes are needed.
The same question is discussed here: How do I restore the Unity 7 Ctrl-Alt-Numpad combination behaviour on Gnome 3?
Basically, what I have tried from this thread (and that worked) is this:
unset the problematical keybindings from gnome:
gsettings set org.gnome.desktop.wm.keybindings move-to-side-n "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-corner-ne "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-side-e "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-corner-se "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-side-s "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-corner-sw "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-side-w "['disabled']"
gsettings set org.gnome.desktop.wm.keybindings move-to-corner-nw "['disabled']"
with sw, nw, ne, se for corners, and n, e, s, w for sides.
Then I have tried installing the gnome extension called Put Windows. Using this extension options (refresh page if you don't see the option button next to the on/off button), I was able to set the correct keybindings I wanted.
If some keybindings still do not work (that was my case for the move-windows-monitor-left/right commands), you can try to install ccsm :
sudo apt install compizconfig-settings-manager
And set the remaining keybindings under the "Window Management" section, in "Grid".
