Hello,

I use KDE Neon on an Asus NV552VX laptop with Nvidia and Intel graphics card (I believe it's called Prime system).
I changed used video card in the nvidia graphical utility to use the intel one, as I don't do games. But after reboot, I can't log in anymore. In the login page my mouse/keyboard don't do anything. How can I revert back ?

thanks for your help !

you could try at the grub screen to press e to edit the boot line , navigate with arrow keys and get the cursor right past the "quiet splash" and add nomodset then press ctrl+x to boot.
this will keep any module/driver from loading .
VINNY

Yes I can do this, but when i'm logged in, I can't undo the change in the nvidia graphical utility because of this boot paramater ; so it doesn't resolve my issue.