The nice Linux Mint boot logo disappeard after the installation of the proprietary Nvida driver and got replaced by a lot of “£” characters. But it is really simple to get the boot logo back.
You have to edit the grub settings, which start Linux Mint. Type the following code in the terminal:
sudo nano /etc/default/grub
Now the configuration file loads, find the following content:
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE="640x480"
and add below:
GRUB_GFXPAYLOAD_LINUX=auto
Save with Ctrl+O and exit with Ctrl+X. I had still the problem, that the resolution was wrong, so i added my wanted resolution like this:
GRUB_GFXPAYLOAD_LINUX="1920x1080"
The last point is to activate the changes:
sudo update-grub
Therefore the system should start like before!