On Friday, September 9th, 2022 at 12:23, Hans de Goede <hdegoede@xxxxxxxxxx> wrote: > "people using > non fully integrated desktop environments like e.g. sway often use custom > scripts binded to hotkeys to get functionality like the brightness > up/down keyboard hotkeys changing the brightness. This typically involves > e.g. the xbacklight utility. > > Even if the xbacklight utility is ported to use kms with the new connector > object brightness properties then this still will not work because > changing the properties will require drm-master rights and e.g. sway will > already hold those." I don't think this is a good argument. Sway (which I'm a maintainer of) can add a command to change the backlight, and then users can bind their keybinding to that command. This is not very different from e.g. a keybind to switch on/off a monitor. We can also standardize a protocol to change the backlight across all non-fully-integrated desktop environments (would be a simple addition to output-power-management [1]), so that a single tool can work for multiple compositors. Simon [1]: https://gitlab.freedesktop.org/wlroots/wlr-protocols/-/issues/114
