[Bug 1872452] Re: [amdgpu] Boot into black screen without power supply (Kubuntu on AMD)

hboetes 1872452 at bugs.launchpad.net
Fri Jul 3 07:32:38 UTC 2020


I noticed the same problems and a few more. For example closing the lid
hangs the system. Disconnecting the power supply hangs the system. All
clearly kernel related.

I tried the iommu=soft solution which didn't work for me. Also adding
amd_iommu=pt didn't help.

The best fix I found so far was upgrading to a more recent kernel. i.e. Get this script: https://github.com/pimlie/ubuntu-mainline-kernel.sh
And install the latest kernel.

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Title:
  [amdgpu] Boot into black screen without power supply (Kubuntu on AMD)

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