Bug#884116: linux-image-4.9.0-4-amd64: screen atrifacts then crash
On 16/12/17 19:03, Jerome wrote:
I have a similar issue, for me it occurred when upgrading from
kernel package 4.9.0-3 (stable) to 4.9.0-4.
[...]
I tried a newer kernel, 4.13.0-0.bpo.1 from backports: it helped a
bit. Where 4.9.0-4 froze very quickly, sometimes right at the SDDM
login other times after less than a minute, 4.13 could last several
hours and some suspend/resume cycles. But it also had the same issue
eventually.
I enabled the IOMMU (intel_iommu=on), and it caught something.
There seem to be an access error before the freeze: [...]
Actually kernel 4.13 from backports is fine on my machine. The issues I
saw were related to enabling the IOMMU. Without enabling the IOMMU, 4.13
is fine after one week of use, and doesn't show the problems of 4.9.0-4.
I had enabled the IOMMU in the hope of containing the issue with 4.9.0-4
instead of having my laptop locked solid, and it somehow worked. But
this had other effects: with the IOMMU enabled, the stable version
4.9.0-3 started to have GPU hang issues due to IOMMU errors. So I
disabled it and retried 4.13, and it was stable. That's a fishy
situation, but at least the system is usable.
So people experiencing this bug problem may want to try the backports
4.13 kernel.
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