Francesco, I think this is an HW issue, except setting intel_iommu=igfx_off we can’t do much about it. Few from the community are not happy with that and then reopened the issue. Joonas might know more details.
At the moment, we can’t much about this bug, just letting you know the backgroundJ



From: intel-gfx-bugs [] On Behalf Of
Sent: Friday, March 22, 2019 11:03 AM
Subject: [Bug 89360] [bdw-u iommu] DMAR error -> GPU hang


Comment # 110 on bug 89360 from Francesco Balestrieri

Ping miguelramos?

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