XPS 15: Black screen with blinking cursor after update
Solution 1:
The solution was:
sudo nano /etc/default/grub
Find the line with the variable GRUB_CMDLINE_LINUX_DEFAULT, and add nomodeset to the variables, so it looks like this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
Then update-grub:
sudo update-grub