https://bugs.freedesktop.org/show_bug.cgi?id=105684

--- Comment #26 from jian-hong@endlessm.com ---
Yes.  System can boot with modprobe.blacklist=amdgpu &
systemd.unit=multi-user.target.

This is the way that I tested and got the dmesg.
I booted with that configuration and got into command line environment.
Than, modprobe efi-pstore which lets the dmesg can be saved into efi storage
when system hangs up.
Then, modprobe amdgpu manually.  If system hangs up at that time, I can get the
dmesg with error information in efi storage at next boot.

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