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Bug#995234: linux-image-amd64: can't start X anymore with linux-image-5.14.0-1



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Hi,

Le 2021-09-28 12:06, Klaumi Klingsporn a écrit :
> Package: linux-image-amd64
> Version: 5.14.6-2
> Severity: important
> 
> Dear Maintainer,
> 
> after today's kernel-upgrade in testing to linux-image-5.14.0-1-amd64 (version 5.14.6-2)
> X cannot be started on my machine neither by lightdm nor by hand with startx.
> Booting with linux-image-5.10.0-8-amd64 (version 5.10.46-5) all works fine.
> 
> Hardware: AMD Ryzen3 3200G with Radeon Vega Graphics managed by amdgpu
> 
> I'll attach the relevant log-files for both kernels. But looking at Xorg.0.log it seems
> as if the amdgpu-driver doesn't recognize the GPU any more and lists all supported
> chipsets instead.

Does adding 'mem_encrypt=off' to the kernel command line helps?

Cheers,
Vincent

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