Comment # 5 on bug 1189762 from Joerg Roedel

(In reply to Dainius Masiliunas from comment #4)

> @Joerg: Do you mean without any options on 5.3.18-59.19.1? In that case, no,
> it literally freezes while showing the GRUB "Starting initial ramdisk..."
> line, i.e. there is no video output at all. With acpi=off I would be able to
> see where it freezes, but is that useful? With iommu=off or iommu=soft it
> does not freeze. With all other iommu options it does not produce any
> output, just like if I pass no iommu options at all.

When you are in grub you can press 'e' to edit the entry, and in this editor
you can remove individual kernel options for testing. There please remove the
'quiet' and 'splash=silent' options. This should show you all boot messages on
the screen, up to the freeze.