KVM Guest Drivers for Windows 2018
Overview
This page describes how to obtain and use virtio drivers for Windows virtual machines running on KVM, and additional software agents for Windows VMs.
Yum|Dnf Repo
There are a yum|dnf repo shipping 'virtio-win' RPMs. The RPMs install driver binaries and agent installers on your host machine...
It sounds like you don't have the GD extension installed. I don't use Ubuntu any longer, but I think it may be named php5-gd, so you'd need to install that package and restart your webserver and it should then work.
Ubuntu 16.04 comes with PHP7 as the standard, so...
We are using Xubuntu (an elegant and easy-to-use Linux distribution, based on Ubuntu, using Xfce as the graphical desktop). Xubuntu has a shortcut for locking the screen. It is CTRL+ALT+Del. However, there was no shortcut for Suspend action (keeping the computer in Sleep mode).
If you would like to add...