Version: (using KDE 4.3.2) Installed from: Ubuntu Packages While Konsole is a full-fledged windowed application using konsolepart, there are non-windowed applications like Yakuake and plasmoids like Plasmacon (http://kde-look.org/content/show.php/Plasmacon?content=108120) using konsolepart which cannot use the window manager's ability to set translucency. So konsolepart should support translucency so that by making the appropriate setting in the Edit Profile > Appearance tab. This translucency may depend on compositing being enabled, and is not requested natively but it should be provided.
> While Konsole is a full-fledged windowed application using konsolepart Konsole itself does not use konsolepart, though it uses much of the same code. As far as I can see, all the code that deals with transparency is the same in both the application and the part. The only difference from a typical application is that Konsole sets the Qt::WA_TranslucentBackground attribute on the main window - which I think is something best done by the application rather than the part. > So konsolepart should support translucency so that by making > the appropriate setting in the Edit Profile > Appearance tab. Yakuake supports transparency does it not? I remember Eike Hein made some changes to the Konsole part to enable transparency.
I also remember Yakuake supporting translucency in KDE 3 but I have not seen it in KDE 4. I have tried the context menu and the drop-down menu by pressing the down-arrow button on the bottom right of Yakuake, but I do not see any translucency settings. I do not know the exact internals of Konsole, and my statement that it uses konsolepart was an assumption seeing as Kate uses katepart.
Sorry folks, should have waited for further developments at KDE Forum before filing this bug. http://forum.kde.org/viewtopic.php?f=67&t=84528&p=141083#p141083 gave me the answer to get translucency in Yakuake working which means that Konsolepart does indeed support translucency already. So closing as INVALID.
Yakuake-KDE4 has translucency support but it's broken maybe because konsolepart always draws background with the opacity value of the colorscheme it uses. yakuake is setting Qt::WA_TranslucentBackground. But this makes just the frame of yakuake transparent, not the konsole itself. Maybe, a method can be added to konsolepart to override opacity value defined in colorscheme, so applications using konsolepart can also override opacity value and make konsole transparent. So, this bug is still valid, and must be reopened I think.