When changing the resolution on my iMac 5k late 2015 I am experience an artifact (horizontal lines).
This happens on all Linux distros including xorg and wayland.
I know that the system has one of those three GPU's inside:
"AMD Radeon R9 M380/M390/M395",
but neofetch/lspci reports:
"AMD ATI Firepro M6100"
and my settings:
I am using the "Radeon" driver.
I've been dealing with the issue very long and need help from some LinuxPros.
Can any one help?
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