Breakdown of the Error:

The error message indicates that the dpkg package manager encountered problems while trying to remove the xserver-xorg-video-nvidia-tesla package. Specifically, the post-removal script of this package returned an error code of 128.

Potential Causes:

Dependency Issues: The xserver-xorg-video-nvidia-tesla package might have dependencies that are still in use by other applications. These dependencies could be preventing its removal.
Configuration Issues: The package might have configuration files or settings that are still in use by the system, causing the removal to fail.
File System Issues: There could be file system-related problems preventing the removal of the package or its associated files.
Package Corruption: The package itself might be corrupted, leading to errors during removal.