FreeBSD: (EE) Failed to load module 'fbdev' (module does not exist, 0) Error and Solution

The error message "EE) Failed to load module 'fbdev' (module does not exist, 0)" can occur when starting the X Window System on a FreeBSD system. This error indicates that the fbdev module, which is responsible for handling framebuffer devices, could not be loaded.

There are several possible causes for this error:

1. The fbdev module is not installed on the system. To check if the fbdev module is installed, you can use the kldstat command to list the loaded kernel modules:

# kldstat

If the fbdev module is not listed, you can install it using the pkg package manager:

# pkg install xf86-video-fbdev

2. The fbdev module is installed, but it is not being loaded at boot time. To load the fbdev module at boot time, you can add the following line to the /boot/loader.conf file:

fbdev_load="YES"

3. There is a problem with the hardware or device driver for the framebuffer device. In this case, you may need to troubleshoot the hardware or device driver to resolve the issue.

For more information about troubleshooting the X Window System on a FreeBSD system, you can refer to the FreeBSD documentation.