... just FYI for those it may help ... after the latest system update my laptop would blackscreen after signin prompt and reboot itslef, then just sit there with a black screen. I researched and found a workaround with the nomodeset in grub but there apparently is now some problem with integrated Intel graphics that has come to the surface with this new update. If you're in the same boat this might help:
- Open a terminal and run:
sudo nano /etc/default/grub. - Locate the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash". - Change it to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset". - Save and exit
- Run:
sudo update-grub
reboot