I just noticed your AMD GPU is a "Renoir" which isn't fully supported until kernel 5.5, and you have kernel 5.4. So it might be useful to try a newer kernel. Please try:
sudo apt install linux-generic-hwe-20.04-edge
and then reboot.
I just noticed your AMD GPU is a "Renoir" which isn't fully supported until kernel 5.5, and you have kernel 5.4. So it might be useful to try a newer kernel. Please try:
sudo apt install linux-generic- hwe-20. 04-edge
and then reboot.