[Bug 112288] Blank display on Ubuntu 19.10 on Ryzen 3 2200G and Ryzen 5 2400G APUs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112288

--- Comment #12 from Alex Deucher <alexdeucher at gmail.com> ---
Does disabling the iommu help?  Append iommu=off or iommu=pt to the kernel
command line.

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