X.org Log suddenly got big up to 19GB

[kearney]

[HowTo] Check a user session type (Wayland / X11) you are using on Gnome, KDE

Difficulty: ☆☆☆☆☆ There are several ways to find it out. The article covered: Desktop Environments (DE) of: Gnome; KDE. methods to get info: Graphical UI (GUI); Terminal UI (TUI): for visual reading; for usage in programming (to get a pure string value to use it in your scripts). Methods using GUI

Gnome

Open the settings application Select the option about Look for the Windowing system line where the options are: Wayland or X11

KDE

Info Centre from Start menu Open Start menu. Naviga…

As that mentioned, I type in konsole echo $XDG_SESSION_TYPE and got X11.

I do not know what is “Tjek”(Bing shows it is a shopping website) or how to check which session type before login. Before login, I can not use terminal