20'C 흐림
서울 강남구
#sudo none /etc/default/grub
Change line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"
Ctrl-X, press Y and then Enter to save and exit.
#sudo update-grub
Reboot and you should no longer have the black screen problem.