I am currently using OpenMandriva Lx ROME and I love it. It boots and loads really fast on my AMD Ryzen laptop. Unfortunately, KDE's brightness control is not working and I have to use xrandr to control the brightness manually. The Simple Solution After reading random forums about this not-really-uncommon issue, I've successfully solved the issue by these following simple steps: Using your favourite text editor, edit /etc/default/grub In GRUB_CMDLINE_LINUX_DEFAULT remove acpi_backlight=vendor then, add amdgpu.backlight=0 Update grub: sudo grub2-mkconfig -o /boot/grub2/grub.cfg Reboot the system. Now, the KDE's brightness control should work properly.
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