black screen and slow on tigervnc-xorg-module

[RomikB]

I'm trying to setup the Single Server Configuration from https://wiki.gentoo.org/wiki/TigerVNC[b][/b].
I can connect to login screen and enter password but after this I got back screen, after reconnect I can view some parts of interface with very slow user responce (1-2 seconds).

Is "tigervnc-xorg-module" still usefull now?

I need to connect to real display and login logout to different users in same session.
I use Lightdm and xfce4 started from display-manager service.
x0vncserver have no such problems but it crash (or exit) on logout.
I can't use x11vnc because it service crash on logout, and do not support using the Shift key.

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