it’s also not already resolved
the solution turns the screen black or wasn’t implemented correctly
this is the solution, the black screen could be a typo
Append this line to the /etc/default/grub in dom0:
GRUB_CMDLINE_XEN_DEFAULT="$GRUB_CMDLINE_XEN_DEFAULT ioapic_ack=new"
And run this command in dom0:
sudo grub2-mkconfig -o /boot/grub2/grub.cfg