Ubuntu – Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1)

I found a pretty logical workaround : the rollback.

I followed the below tutoriel:

http://ubuntuhandbook.org/index.php/2017/02/install-remove-enablement-stacks-ubuntu-16-04/

The first part of the removal process actually removes xorg and kubuntu-desktop. We have to remember to reinstall them right after.

After that, I rebooted. It seems that the system kept one 4.8.x kernel by default, but it replaced the graphical stack with the previous one.

This solved the issue I got with LibreOffice (selections and buttons). It seems that it also solved the kernel CPU pipe issue.

Right now, I don't think I am going to dig this deeper.

Note : I am still with the new graphical stck and 4.8.x kernel on my desktop and it works well.

Cheers

With a working internet connection, open a terminal and enter these commands one at a time:

sudo apt update && sudo apt install git

If it is already installed, please just continue.

First, let's clean away the steps that we've shown are not working:

sudo dkms uninstall rtl8812au/5.2.9
sudo rm /usr/src/rtl8812au-5.2.9
sudo rm ~/rtl8812au-driver-5.2.9
rm -rf rtl8812au

Next, please do:

git clone https://github.com/gnab/rtl8812au.git
sudo cp -r rtl8812au  /usr/src/rtl8812au-4.2.2
sudo dkms add -m rtl8812au -v 4.2.2
sudo dkms build -m rtl8812au -v 4.2.2
sudo dkms install -m rtl8812au -v 4.2.2

Reboot and tell us if the wireless is working.