Package: gdm Version: 41.0 Hello, I think I found what may be a major issue related to X Window System and Linux in general. If you run out of hard-drive space it can cause an issue where when you reboot, when it gets to the login screen it will be a black screen and have startup issues. I think this may be an issue in Debian also. If possible, if you can create a new installation of Debian such as in VirtualBox and then create a program such as in Node.js that copies a 20MB file then 1MB file repeatedly with new file names until the harddrive is full. It will then start bugging out and having issues. This may be causing a lot of problems for people. So the Linux OS and Debian needs stress-tested to ensure it will works after the harddrive is completely full.