How I fixed my Black Screen after Suspend:
-
open terminal and do the following:
sudo pluma /etc/default/grub -
replace the line:
GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash’”
With
GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash acpi_backlight=vendor acpi_osi=’!Windows 2013’ acpi_osi=’!Windows 2012’”
-
Close the file saving, then:
sudo update-grub -
Reboot twice for changes to take effect, then test!!
Hopefully this works for others, this is a Desktop PC