diff --git a/nixos/doc/manual/release-notes/rl-1903.xml b/nixos/doc/manual/release-notes/rl-1903.xml index 18d32b59584..e58ce49c79b 100644 --- a/nixos/doc/manual/release-notes/rl-1903.xml +++ b/nixos/doc/manual/release-notes/rl-1903.xml @@ -666,6 +666,10 @@ Some OpenCL and VA-API applications might also break (Beignet seems to provide OpenCL support with modesetting driver, too). + Kernel mode setting API does not support backlight control, + so xbacklight tool will not work; + backlight level can be controlled directly via /sys/ + or with brightnessctl. Users who need this functionality more than multi-output XRandR are advised to add `intel` to `videoDrivers` and report an issue (or provide additional details in an existing one)