I've just stumbled upon the packages libkwinnvidiahack4 (and also libkwinactivenvidiahack4 ). From the description I understand it provides some "hacks" for the KDE window manager in combination with an Nvidia binary graphics driver.
This package contains a library used by nvidia cards for the KDE window manager.
This package is part of the KDE workspace module.
However, this description lacks what it actually does. I use KDE/Kubuntu and I have the Nvidia graphics driver installed. What are the benefits of installing these packages? What do they do?
I've got the
libkwinnvidiahack4 package installed (probably automatically), but I'm not sure what it is responsible for.
Running through the changelogs (
apt-get changelog libkwinnvidiahack4) give me the
kde-workspace changelog with an entry (several snippets taken from it):
- Move libkwinnvidiahack4 to its own package
Add the packages
kde-window-manager/-gles depends on libkwinnvidiahack4
Don't install /usr/lib/libkwinnvidiahack.so. No one is supposed to link against libkwinnvidiahack. Make kdebase-workspace-dev depend on libkdecorations4 and libkwineffects1 instead of kde-window-manager now that kde-window-manager contains nothing one can link against.
which also does not explain why these packages are added and what they do.