--------
Emmanuel Vadot writes:
> On Thu, 02 Feb 2023 20:58:58 +0000
> "Poul-Henning Kamp" <p...@phk.freebsd.dk> wrote:
>
> > --------
> > parv/FreeBSD writes:
> >
> > > > Does backlight(8) works for you?
> > >
> > > Thanks for the clue. It does! It does ...
> > >
> > > - I get the same number back via "backlight" without any arguments as
> > > what I gave it earlier. There was no reporting of value being
> > > subtracted by one;
> >
> > Sorry for the delay in reporting back.
> >
> > I consistently read one less back, except for 0 and 100.
>
> Even 50 ?
# backlight
brightness: 0
# backlight 50
# backlight
brightness: 49
# backlight 25
# backlight
brightness: 24
# backlight 75
# backlight
brightness: 74
yes
> So if you have, let's say brightness at 50%, and you plug an external
> monitor, brightness goes up to 100% ?
No, plugging and unplugging does not change the backlight.
But when the screen saver has kicked in, and I wake it up again, it comes
back at 100, (and reads back as 100)
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
