gnome-shell
The directory /usr/share/gnome-shell/modes/ contains the following configuration files that specify which style sheet to use, from the specified gresource, for the Gnome Shell Top Bar, Dash, and Lock Screen.
initial-setup.json
ubuntu.json
yaru.json
How does gnome shell know which of these config files to use/load?
There must be a place where the names initial-setup, ubuntu, or yaru are configured?
The comment below was the solution that worked for me. I found it at https://bugs.launchpad.net/ubuntu/+source/meta-gnome3/+bug/1777708 and the author of this answer is Pedro Palhares.
After being annoyed by this bug for a long time, i started digging and found a workaround. Today i found that the bug is only present when i'm using certain keyboard layouts ("Portugues (Brasil)") and was not present when i changed the layout to EUA and language to English (need to set them both to English).
After some digging i found out the culprit is the ScrollLock key and that can be fixed by editing the layout file, which in my case is found at /usr/share/X11/xkb/symbols/br. The only modification i did was to remove or comment the line: modifier_map Mod3 { Scroll_Lock }; After that, set the language and layout back to Portugues (Brasil) and the problem was gone!
No more delays between typings. (Fedora and Ubuntu)
In a console, type winecfg then enter. This will open the configuration tool of wine. (I think that if you type "wine config" into gnome search bar, you might also get a "Configure wine" app, it's the same).
Under "graphics", make sure "Allow the window manager to decorate the window" and "Allow the window manager to control the window" are checked.
You have to do that for all wineprefix you use.
Best Answer
It is from the
Ubuntusession which is the default at login screen.session Name Ubuntu -> is the one
/usr/share/xsessions/ubuntu.desktopand its contents are
Observe the line
Exec=in which it is setting the environment variable