It seems GPU drivers from AMD are not great; and may crash the system.
Add the following to the /etc/environment file.
# Disable all hardware acceleration in Firefox, since OpenGL is causing crashing on Navi, WebGL is the culprit. #AMD_DEBUG="nongg,nodma" AMD_DEBUG="nongg nodma" #AMD_DEBUG=nodma #AMD_DEBUG="nongg" #AMD_DEBUG=zerovram
NOTE: Some sites say to use various variations of the above, but the uncommitted entry works for me.
Add amdgpu.noretry=0 to the GRUB_CMDLINE_LINUX_DEFAULT option:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amdgpu.noretry=0"
Then run:
sudo update-grub
Then reboot.
Try:
sudo sh -c 'echo "high" > /sys/class/drm/card0/device/power_dpm_force_performance_level'