GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 consoleblank=0 amdgpu.vm_fragment_size=9"
then sudo update-grub, reboot
it isn't worked for my 6 rigs.
Worked fine for me.
Maybe it's matter of image version of smos? You have latest version of smos? I will try it.