The issue is somewhere in the dynamic power management code. Here's a workaround that has completely resolved the flickering (for me):
As root: echo "high" > /sys/class/drm/card0/device/power_dpm_force_performance_level Found here: https://wiki.archlinux.org/index.php/AMDGPU#Screen_artifacts_and_frequency_problem -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813701 Title: [amdgpu] Flickering graphics corruption (but none observed in kernels 4.18.10-4.18.12) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
