Adding KDE after a basic Gentoo install

First install Xorg. You should have compiled your kernel and the nvidia module keeping in mind the need to run Xorg.

http://www.gentoo.org/doc/en/xorg-config.xml

emacs /etc/make.conf

Changes to make.conf:
VIDEO_CARDS="nvidia"
[/code]

emerge -pv xorg-drivers
emerge xorg-server
env-update
source /etc/profile

Finally try a startx
If you momentarily get a blank screen, X may be setup correctly. Can test with emerge twm (but remeber to unmerge them)

emerge -av kde-meta

If there are use changed you need to write:

emerge -av kde-meta --autounmask-write

(Watch for another command which writes merges the changes to config files)

After installing and compiling packages of KDE, we can try to start kdm

kdm[/code]

If all went well, KDE should start. I got a few errors with dbus and consolekit, which caused KDM to show windows without the resize/min/max buttons, and a few error message popups.

Consolekit session failed to connect to socket.

Solved by:
First see if dbus starts fine:
/etc/init.d/dbus restart

If it does, then:
rc-update add dbus default
rc-update add consolekit default

To make KDM start automatically at boot:
sudo emacs /etc/rc.conf

Add the line:
DISPLAYMANAGER="kdm"

Then add xdm to default runlevel:

rc-update add xdm default