Date: Fri, 5 Jul 2024 00:58:34 +0300 From: Anton Shepelev <anton.txt@gmail.com> To: freebsd-stable@freebsd.org Subject: Re: Need help controlling laptom display brightness via sysctl Message-ID: <20240705005834.4c7983ea29da3af8f8e36718@gmail.com> References: <20240704010029.75608a4e49205eb38a6034be@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
I wrote:
> I need your help in setting up the brightness control on
> HP 15-b0xx laptop via sysctl.
I was infored that this ability has been discountinued in
favour of the backlight utility, so I gave up and wrote the
following devd rule:
notify 10
{ match "system" "ACPI" ;
match "subsystem" "Video" ;
match "type" "brightness" ;
action "/usr/bin/backlight $notify"; };
This changes brightness by tiny 1/100 steps, but this is
by desing of the HP engineers...
References:
1. https://man.freebsd.org/cgi/man.cgi?query=devd.conf
2. https://www.davidschlachter.com/misc/freebsd-acpi_video-thinkpad-display-brightness
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20240705005834.4c7983ea29da3af8f8e36718>