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lenovo/thinkpad/l14/amd: switch to soft iommu mode to prevent mmcblk kernel panic
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1 changed files with 6 additions and 3 deletions
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@ -12,10 +12,13 @@
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# either crashes or is not able to attach to the GPU depending on
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# either crashes or is not able to attach to the GPU depending on
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# the kernel version. I've seen no issues with the IOMMU disabled.
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# the kernel version. I've seen no issues with the IOMMU disabled.
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#
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#
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# BIOS version 1.13 claims to fix IOMMU issues, but we leave the
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# BIOS version 1.13 fixes the IOMMU issues, but we leave the IOMMU
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# IOMMU off to avoid a sad experience for those people that drew
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# in software mode to avoid a sad experience for those people that drew
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# the short straw when they bought their laptop.
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# the short straw when they bought their laptop.
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"iommu=off"
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#
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# Do not set iommu=off, because this will cause the SD-Card reader
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# driver to kernel panic.
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"iommu=soft"
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];
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];
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# As of writing this, Linux 5.8 is the oldest kernel that is still
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# As of writing this, Linux 5.8 is the oldest kernel that is still
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