KDE black screen with cursor in a fresh install

[themythtoon]

All seems fine, sddm works fine, my users have the access to video .
Xorg seems work.
But when I log in to my user from sddm to kde.
KDE charges and when it finish the black screen is still there with the cursor.
Also I the top left of I put the cursor there I will be able to see the blue effect of the corner.
I did install my amdgpu driver too just incase but it changed nothing.
Re installed xorg and led bit nothing I don't know what else do.
If you guys need any information I will give it!
Thanks so much for the patience !

[pietinger]

First of all, we need your installed profile; you see it with "eselect profile list". The output of an "emerge --info" and the content of your /var/log/Xorg.0.log
Did you some special settings for use-flags ? (If yes we need it also).