Use kernel command.
sudo vi /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="amd-iommu=on iommu=pt pci=nommconf"
sudo update-grub
sudo reboot
Reference:
Use kernel command.
sudo vi /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="amd-iommu=on iommu=pt pci=nommconf"
sudo update-grub
sudo reboot
Reference: