[adelie-users] xfce4

I have a working lxqt, wrong colors of course on AST chip, but it works. I tried installing xfce4. However all I get when using startxfce4 or exec startxfce4 is either a blank blue or black screen with a working pointer. There may be something on the screen, but nothing visible. I would like to do a new install for xfce4 only. Is there a proceedure to do this? Right now I get an error from xorg 'cannot find udev-launch' and in the xorg log 'Failed to load ast_drv.so: Error relocating ast_drv.so : vgaHWUnmapMem: symbol not found' Then it loads the modesetting module and later 'fbdev' module.