bezirg [1] filed a deletion request for linux-renoir-backlight [2]: Thank you for this package, but the change for backlight has been merged to mainline upstream to kernel >=5.7.6.1 , which is in core now. See the linux changelog: commit 6674508ba1a2ea6caca5de2bcb25bc00a050fd0a Author: Harry Wentland <harry.wentland@amd.com> Date: Thu May 28 09:44:44 2020 -0400 Revert "drm/amd/display: disable dcn20 abm feature for bring up" commit 14ed1c908a7a623cc0cbf0203f8201d1b7d31d16 upstream. This reverts commit 96cb7cf13d8530099c256c053648ad576588c387. This change was used for DCN2 bringup and is no longer desired. In fact it breaks backlight on DCN2 systems. [1] https://aur.archlinux.org/account/bezirg/ [2] https://aur.archlinux.org/pkgbase/linux-renoir-backlight/