I left my computer turned on and running while I traveled for a week. When I came back the title bars and borders on most windows, such as XTerm and NEdit, had disappeared, so I can’t resize them and I can only move them using Alt-Left-Drag. Title bars on Firefox and Evolution remain, but titlebar actions stopped working. I had set them for left=top, right=bottom, middle-menu, left-double=shade. I tried changing behaviors, applying them, changing back, applying again, but that didn’t make them work. I rebooted and that didn’t make them work. Things look the same as they did when I left, so I don’t think the theme changed.
Debian 12.5 bookworm, kernel 6.1.0-32-amd64.
KDE Plasma 5.27.5, Frameworks 5.103.0
QT 5.18.5
Wayland
Graphics NVidia Quadro K2200, Driver nouveau
Hi - what Window Decorations are shown as currently active within System Settings? Does anything change when you choose something else, click Apply, and then switch back?
Titlebars on ff and the lot are probably there cause you, probably, set them to native. Anywho, even some default window decorations, like Breeze, have an option to hide titlebars. It’s in ( pardon my French) system settings>window decorations>say, breeze>window specific stuff. Check if that’s not the case.
Changed from Breeze to Oxygen, apply, Oxygen to Plastik, apply, Plastik back to Breeze, apply. Nothing changed. Changing settings under Application Style, Plasma Style, Colors, Window Decorations had no effect.
Clicking the edit icon on Window Decorations => Breeze offers a few trivial things, but nothing about the title bar other than title alignment.
The question remains why everything changed while I was away, with my computer running with only “me” logged in from the console and not remotely. There are no logins in “last -i” output during the time I was traveling.
I opened System Settings from the menu and it came up as “Quick Settings.” I clicked on “Breeze” to change from “Breeze Dark.” Down near the bottom is “Mostly Used Pages” so I clicked on “Window Decorations.” I clicked on “Window Decorations” and it reminded me I hadn’t done “Apply.” When I applied the change, window title bars and borders returned, but still many of the behaviors don’t work, in particular my setting for double-click to “Shade.” And the cursor now disappears in the title bar and border. There is a “Window Specific Overrides” tab, but it doesn’t appear to have any relationship to whether title bars and borders are displayed. And the settings that work only work in some windows. For example, right-click to “Lower” works on the settings window and XTerm, but not on Firefox or Evolution.
I didn’t know about this setting. Now that title bars and border bars have returned as a result of changing the theme, I don’t know whether that setting was selected for windows that had no title bar or border. Is there a “global” setting for it? Title bars and borders had been suppressed for some windows — XTerm and NEdit — but not for others — Evolution and Firefox. But the latter two appear not to respect any of the settings. For example, “right click” doesn’t “Lower,” but it does on other windows.
Now that the title bars and borders are back for every window, the cursor disappears in the title bar and border. That had happened before but I thought maybe it was caused by using the NVidia 550 driver instead of nouveau because when I switched back to nouveau the cursor came back. But now I’m still using nouveau and the cursor is gone.
There’s, as far as I know, no global setting for yes/no border or titlebars. It’s app specific. In either case, you might wanna check if there are some rules for certain apps in system settings>window stuff> window rules.
