Ubuntu – How to disable the window resizing when accidentally touching one of the screen edges in GNOME 3

VirtualBox devs basically threw their hands up over 3D Acceleration with regards to X11 guests, as stated in this post from over 2 years ago: https://www.virtualbox.org/wiki/X11Guest3D

There are dozens of tickets created on the VirtualBox site, and all of them have gone ignored. Plenty of forum posts as well. The same reply has been given every time, the latest one I can find posted 3 weeks ago by one of the devs (michael):

I am afraid that there is currently no one on the team with enough free time to investigate this (and no sign that it will change in the foreseeable future). It should be something which interested users with skills in OpenGL programming in C should be able to track down and fix. Questions (technical ones) or patches welcome on the vbox-dev mailing list.

Going forward, the current consensus is that you have 4 options:

1. Disable 3D Acceleration (easiest)
2. Use any other desktop environment besides GNOME x11, such as GNOME Wayland or Unity
3. Use any of the other virtualization products
4. Contribute to the VirtualBox project yourself

Links: https://forums.virtualbox.org/viewtopic.php?f=3&t=84198 https://www.virtualbox.org/ticket/15417 https://www.virtualbox.org/ticket/17014 https://www.virtualbox.org/ticket/17577 https://forums.virtualbox.org/viewforum.php?f=3

Disable screen lock is available in Gnome settings, Pivacy.

You can also type this in a terminal :

gsettings set org.gnome.desktop.screensaver lock-enabled false