This also affects me on a fresh Arch Linux install with the RX 580 8GB
GPU. I have found a temporary workaround to this issue until it is
finally solved. I used Budgie Settings to enable the execution of this
command each time it enters the environment:
xrandr --output HDMI-A-0 --mode 1920x1080 -r 60
This disables the flickering if executed as the system enters the
desktop environment. Replace your output with whatever you use (in my
case, I use HDMI-A-0). Of course, it will cap your frame-rate at 60Hz
but it's better than having the flickering lines at the bottom of the
screen.
Your use may vary, but this worked for me.
** Also affects: archlinux
Importance: Undecided
Status: New
** Package changed: archlinux => linux (Arch Linux)
** No longer affects: linux (Arch Linux)
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https://bugs.launchpad.net/bugs/1813701
Title:
[amdgpu] Flickering graphics corruption (but none observed in kernels
4.18.10-4.18.12)
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