I am getting the same warning messages with the fully-updated 20.04.
<snipp>
W: Possible missing firmware /lib/firmware/amdgpu/arcturus_smc.bin for module am dgpu
ryzen@cp7:~$ apt policy linux-firmware linux-firmware: Installed: 1.187 Candidate: 1.187 Version table: *** 1.187 500 500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages 500 http://us.archive.ubuntu.com/ubuntu focal/main i386 Packages 100 /var/lib/dpkg/status
I am getting the same warning messages with the fully-updated 20.04.
<snipp>
W: Possible missing firmware /lib/firmware/ amdgpu/ arcturus_ smc.bin for module am
dgpu
ryzen@cp7:~$ apt policy linux-firmware us.archive. ubuntu. com/ubuntu focal/main amd64 Packages us.archive. ubuntu. com/ubuntu focal/main i386 Packages dpkg/status
linux-firmware:
Installed: 1.187
Candidate: 1.187
Version table:
*** 1.187 500
500 http://
500 http://
100 /var/lib/