[Bug 198883] amdgpu: carrizo: Screen stalls after starting X

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=198883

--- Comment #69 from Ricardo Ribalda (ricardo.ribalda at gmail.com) ---
This is my kernel configuration:


ricardo at neopili:~/curro/kernel-upstream$ cat .config | grep -i IOMMU
CONFIG_GART_IOMMU=y
# CONFIG_CALGARY_IOMMU is not set
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_SUPPORT=y
# Generic IOMMU Pagetable Support
# CONFIG_AMD_IOMMU is not set
# CONFIG_INTEL_IOMMU is not set
# CONFIG_IOMMU_DEBUG is not set


Tomorrow I will try bootig with iommu=off, but my understanding was that if
/sys/class/iommu was missing, iommu was disabled.

Thans!

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