Linux Gnome Desktop Windows Decoration Disappeared

If the windows decoration (title bar and border) on your Linux Gnome desktop has disappeared, it may be due to a problem with the window manager. There are several steps you can try to troubleshoot and fix the problem:

1. Check that the window manager is running. The window manager is responsible for drawing the windows decoration on your desktop. You can check that the window manager is running by using the ps command to list the running processes, and searching for the window manager process. For example:

ps aux | grep window-manager

If the window manager is not running, you can try starting it manually. The name of the window manager may vary depending on your desktop environment, but common window managers for the Gnome desktop include mutter, metacity, and gnome-shell.

2. Check that the window manager is configured correctly. If the window manager is running, but the windows decoration is still not appearing, there may be a problem with the configuration. You can check the configuration files for the window manager to see if there are any errors or issues. The configuration files are usually located in the /etc or ~/.config directory, and the names may vary depending on the window manager.

3. Restart the window manager. If the window manager is running and the configuration appears to be correct, you can try restarting the window manager to see if that fixes the problem. To restart the window manager, you can use the kill command to send the SIGHUP signal to the window manager process. For example:

killall -SIGHUP window-manager

This will restart the window manager and may fix any issues with the windows decoration.

4. Try a different window manager. If the above steps do not fix the problem, you can try using a different window manager to see if that resolves the issue. To switch to a different window manager, you can use the gnome-tweaks tool to change the window manager in the "Windows" section.

If you are still having trouble with the windows decoration on your Linux Gnome desktop after trying these steps, you may need to seek assistance from a qualified Gnome or Linux administrator.