https://bugs.freedesktop.org/show_bug.cgi?id=102646
--- Comment #78 from Garrett dragonhart6505@gmail.com --- (In reply to IvvanVG from comment #76)
problem because of this commit https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/ ?h=linux-4.18.y&id=d9ef158adf04b81772a7e9d682a054614ebac2fd discussion on Ubuntu was here https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-amdgpu/+bug/ 1813701 Also affects RX580. I think that the bug applies to 400, 500 series of graphics cards
affected my RX580 until i ran the command i commented above. on my RX580, locking the sclk fixed flickering on 75hz refresh. yea its running a little harder just to keep the display from flickering on the desktop but it stays cool enough im not worried about it