kde4 on vnc.

And, the RENDER extension is not implemented by the VNC server as shown below:

Most solutions I have seen required  that VNC is replaced by other solutions such as NX implementations (for example FreeNX). This is not an actual solution if you really requires a VNC server. As an example, I am using an Axel M75E Thin Terminal. Those sort of terminals offer a quite good solution for quiet, very thin graphical terminal. But it actually requires a VNC server. Fortunately, there is at least one VNC server implementation that implements the X RENDER extension: TigerVNC. By the way, it is available into the Portage Gentoo tree, so installing it is painless: emerge tigervnc. It works pretty well as shown by those screenshots:

KDE4 looks normal using the TigerVNC implementation.

And as suspected, the X RENDER extension is implemented by TigerVNC:

The VNC server implementations that do not implement the X RENDER implementation and that are therefore unsuitable for qt4 applications (including the whole KDE4) are:

• TightVNC v1.3.10
• RealVNC v4.1.3

Toutefois, si vous déclarez par Internet, on vous offre la possibilité en quelques clics de télédéclarer. Trés pratique, sauf que là encore, par défaut, on suppose que vous avez une télé, SANS VOUS AFFICHER L’OPTION À DÉCOCHER !! Il faut donc demander la modification de la déclaration préremplie afin de cocher cette case.

Vous êtes prévenus.