Missing login screen image

Hi all, I've got this little problem on Kali, I tried to reinstall multiple times but nothing change, so here's my problem:
Every time I get at the login screen the background image is missing or simply not seen by the system, I tried to change the image at /usr/share/gnome-shell/KaliLogin.png but I keep getting that grey window.
These are my specs:

OS: Kali GNU/Linux Rolling 64-bit (4.4.0-kali1-amd64)
RAM: 8 GB DDR3
GPU: Intel HD Graphics 4400 Haswell (integradet / NVIDIA Geforce 840M (with nouveau driver, I tried multiple times to install nvidia propietary drivers but at reboot there is the message "Oh no something went wrong").

Hope that someone knows how to fix this. Thanks

Screenshot:
Attachment 1362

I have same issue , dont know how to change this login screen background , i can only change the logo at /usr/share/desktop-base/kali-dragon.png and "shield screen" background by right click change "lock screen" background function.

Try this https://forums.kali.org/showthread.p...n-Gnome-3-20-2