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Bug#1050352: backside USB-ports stop working after some time



On Tuesday, 29 August 2023 07:43:40 CEST Rolf Reintjes wrote:
> I could isolate the problem causing code in the debian patches on file
> 
> drivers/iommu/intel/iommu.c
> 
> With this change
> 
> rolf@i7-5820K-debian-testing:~/kernel/linux-source-6.4/drivers/iommu/intel$
> diff iommu.c.debian iommu.c
> 286c286
> < int dmar_disabled = IS_ENABLED(CONFIG_INTEL_IOMMU_DEFAULT_OFF);
> ---
> 
>  > int dmar_disabled = !IS_ENABLED(CONFIG_INTEL_IOMMU_DEFAULT_ON);
> 
> the problem is not there.

Excellent, thanks for the analyses.

On Monday, 28 August 2023 16:46:02 CEST Rolf Reintjes wrote:
> I would appreciate further advice and guidance.

Have patience. When someone with the needed knowledge has time to look into 
this issue, they will.
But we can't make claims on how people spend their free time.

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