Hi,

the laptop is still freezing when trying to start with kernel 4.20 (release
version) using latest amdgpu firmware from kernel firmware git.

Using iommu=soft still solves that issue.

I also tested with a kernel daily build from 26.12 which should include the
latest drm changes, and it also shows the same issue.

Is there anything we can provide to help finding the root cause ?

Many thanks !
Christian