Debian buster/bullseye/bookworm(testing)? What extra line in grub and which driver version do you use.
I added "amdgpu.ppfeaturemask=0xffffffff" to /etc/default/grub to GRUB_CMDLINE_LINUX_DEFAULT part. I installed amd drivers for debian as show in some howto, I think that's the standard way

and then I manually installed opencl-rocr-amdgpu-pro and all the dependencies manually. I installed then from tarball of 21.20 version of drivers(for ubuntu 20.04)
my kernel is 5.10.0-16
debian version is bullseye.