[Bug 89360] [bdw-u iommu] DMAR error -> GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89360

--- Comment #102 from miguelramos <osorio at uniovi.es> ---
I can confirm that the problem still affects Intel Broadwell 5500 (gen 8) that
needs the workaround in kernel 4.19.2 using gentoo-sources and vanilla-sources
in Gentoo Linux to start "gdm" without suffering a Intel GPU hang.

dmesg clearly shows that the problem with DMAR hangs the Intel GPU.

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