NVIDIA SOLUTION AND EXTERNAL MONITOR
There is a problem when trying to use external monitors on PCs equipped with Nvidia graphics cards. Unfortunately the nvidia drivers They tend to cause problems in the Linux world, and many of us suffer the side effects of Nvidia's decision not to provide access to their drivers, so in this article I will explain the problem I had and the solution to it. Solution for which Pablo collaborated (@ Senpai86), group administrator Deepin in Spanish on Telegram, and a member of the community developer team, Latin Code.
The problem I had when installing Deepin were the dependencies of bumblebee, specifically with a broken dependency "Bbswitch-dkms", so Pablo recompiled a plugin new, which is developed by Deepin, to convert it into a packaged package in format deb for easy installation. It solves this dependency problem.
STEPS TO INSTALL BUMBLEBEE
Once installed Deepines Store, entonces procede a abrir una terminal y ejecutar los comandos que se muestran a continuación, ejecútalos en este mismo orden:
sudo apt update && sudo apt install dde-dock-graphics-plugin
Then we will install bumblebee
sudo apt install bumblebee
To apply the changes we will install Deepin Graphic manager, since since version 20 of Deepin does not come pre-installed
sudo apt install deepin-graphics-driver-manager
Now we choose the option bumblebee in the app
It is important to restart and follow the steps that will appear. They may already be able to use their external monitor up to this point, if it still doesn't work I'll go on to explain a possible solution to this problem.
SOLUTION TO THE PROBLEM WITH EXTERNAL MONITOR
This is a possible solution that worked for me, before applying these steps, please make a backup.
With the above installation, it should be in the dock the plugin of the graph
We choose the option of Nvidia, we wait patiently for the change notification to be completed and ask us to log out, however what we must do is restart the computer again.
If you have a problem with any of these steps, we will listen to your comments.
NOTE: If the dock appears on the other monitor and you don't want it to be there, in settings, choose the monitor you want as the main monitor and restart.