Running Godot GDScript and CSharp on Xorg with Intel Cards

I usually use window managers on my machine because they consume less computer resources: memory, processing,… And this improves performance.

But, I had a problem related to Tearing (the screen was “cutting in half”), especially when doing screencast.

So, I solved this problem by creating a configuration file in /etc/X11/xorg.conf.d/20-intel.conf and inserting the content below:

Section "Device"
 Identifier "Intel Graphics"
 "Intel" driver
 Option "AccelMethod" "sna"
 Option "DRI" "2"
 Option "TearFree" "true"
EndSection

However, one day I decided to install Godot CSharp and when I opened it, or even when I could open it, but after trying to open a project, I got the error :

Your video card drivers seem not to support the required Vulkan version.

If possible, consider updating your video card drivers or using the OpenGL 3 driver.

You can enable the OpenGL 3 driver by starting the engine from the
command line with the command:

 "godot-csharp" --rendering-driver opengl3

If you recently updated your video card drivers, try rebooting.

Godot error

Even running via the command line as the message indicated godot-csharp --rendering-driver opengl3, it didn’t work:

Godot Engine v4.1.3.stable.mono.official.f06b6836a - https://godotengine.org
vulkan: No DRI3 support detected - required for presentation
Note: you can probably enable DRI3 in your Xorg config
ERROR: None of Vulkan devices supports both graphics and present queues.
 at: _create_physical_device (drivers/vulkan/vulkan_context.cpp:1278)
ERROR: Condition "err != OK" is true. Returning: ERR_CANT_CREATE
 at: _window_create (drivers/vulkan/vulkan_context.cpp:1681)
ERROR: Can't create a Vulkan window
 at: _create_window (platform/linuxbsd/x11/display_server_x11.cpp:5300)
libEGL warning: failed to get driver name for fd -1
...

But generally we ignore the messages and simply summarize them as: “- Ahhh! There was an error… :(”

However, on the second attempt I decided to read the messages from the output and notice that they contain the following line:

vulkan: No DRI3 support detected - required for presentation

Vulkan needs this configuration!

So I thought to myself: — Ummm… I know!!.

I changed the same configuration file to DRI 3, but after doing so it was still a bit strange, so I changed the acceleration method from sna to glamor.

In the end my file: /etc/X11/xorg.conf.d/20-intel.conf looked like this:

Section "Device"
  Identifier "Intel Graphics"
  "Intel" driver
  Option "AccelMethod" "glamor"
  Option "DRI" "3"
  Option "TearFree" "true"
EndSection

All I had to do was close the session (log out) and log in again and things worked:

Godot C# running

If you have this same problem, try these settings!

Remembering that first you need to have: Vulkan installed on your system!

You can still replace some lines like: Driver or even add Backlight to work with MESA Intel:

...
"modesetting" driver
Option "Backlight" "Intel_backlight"
...

If it’s necessary!

OBSERVATION:

Maybe you got here thinking that there would be a solution to another type of problem: a Godot bug that “crashes” when you save any modification to your project.

I’ve already researched this, including from people who have already run GDB to know exactly where this failure is.

If you use GNU/Linux distros, this is most likely due to your Graphical Interface: GNOME, as well as those based on it: XFCE, Cinnamon,… including window managers .

The good news is that if you use KDE Plasma, you probably won’t have this kind of problem!