I'm on Kubuntu 10.04 with KDE 4.5.1 and there are no titlebars
or borders on windows for most applications. There's a few exceptions,
for example chromium-browser windows have the titlebars and borders.

I've tried different window decorations and changing various things
in System Settings, but I can't seem to get my titlebars and borders
back. Can someone help?

Thanks, Gus

Most likely you are missing some package, did you try installing the metapackage kde-full?
Using KDE 4.5.1 on Kubuntu 10.04 here, no problems with windows decorations, using the default Oxygen theme for windwos decoration, desktop theme is Air (which is also default IIRC).

Can you switch between windows?

Sounds like KWin isn't running. Which window manager do you want to use (the default one, Compiz Fusion etc.)? What happens if you run

Code: Select all

kwin --replace

in a terminal?

> Sounds like KWin isn't running. Which window manager do you want to use
> (the default one, Compiz Fusion etc.)? What happens if you run
> kwin --replace

I think that's it - when I run kwin --replace the titlebars/border
reappear. (I want to run the default window manager, not Compiz Fusion).

How do I configure kwin to start automatically?

Thanks for help - Gus

Not quite sure how to change that, can you please check in System Settings -> Workspace Appearance and Behavior -> Default Applications -> Window Manager and see if the first option (Use the default KDE window manager (KWin)) is selected.

Hi Hans

I know this is an old thread, but Suse 11.4
and running KDE Version 4.6.00 (4.6.0) "release 6"

This problem still exits. Your workaround solves it.

Something I am installing has caused the problem.
What ever it is, it does not warn about changing from kwin too compiz.

Thank so much for helping me sort out 'two' PCs with the same problem,
and a potential
re-install.

Running SuSE 11.4 (installed with GNOME)

Added KDE, which worked fine a few days, then installing (I forget), and subsequent boots (days later) had KDE's title bars/borders lost.

The "kwin --replace &" fix fixed my problem so thank you.

Chris g.

kwin --replace solved it for me...

Turns out (somehow) KDE-window-manager was not installed on my 12.04 system... WTF?

I auto-installed some updates a couple of days ago, and that somehow must have zapped the window manager. It caused me all manner of headaches, not least because I started tinkering with my NVIDIA display driver...

Anyhow, after 8hrs trying to crack this, this thread solved it for me. Cheers.

Thanks! This resolved my problem too. I deinstalled the NVIDIA driver with "apt-get purge nvidia*" and it removed my kde-window-manager for no obvious reason. So, after installing it back "apt-get install kde-window-manager" everything was OK.

I just did a apt-get upgrade and I lost my title bar i cant min, close or anything I have to us file-quit???


Debian
Knoppix 7.4

either kwin crashed or isn't installed (seems a problem on debian/ubuntu where kwin/4 was in kde-workspace and kwin/5 is in kwin)
open a terminal (xterm/konsole) and run "kwin_x11 --version" and "kwin --version" - if neither is there, you need to install kwin (or any other WM like openbox)

I simply used xfwm4 --replace command

This replaced my window manager, and its working

2020 and kwin stills missing on mint's kde-full package.

Code: Select all

sudo apt install kwin-x11

After installed, Just logout and login.
Big thanks


mint: Mint 19.1 Tessa and linux 5.3.0-53-generic

Bignet
After hours of looking for why,... THANK YOU you saved me. I installed KDE full but no title bar.
I have a lot of respect for KDE/Debian but they have to do something to make things simple otherwise Android and Microsoft will keep their monopolies.
Take care