Re: Could not change brightness anymore with i915kms & acpi_video modules c 202211
Date: Tue, 31 Jan 2023 13:20:55 UTC
On Tue, 31 Jan 2023 13:09:39 +0000 "Poul-Henning Kamp" <phk@phk.freebsd.dk> wrote: > -------- > Emmanuel Vadot writes: > > > > > Does backlight(8) works for you? > > > > > > Speaking of backlight(8): On my T14s, I see the following: > > > > > > If I set the light with backlight(8) to something, say 30%, and then > > > change the power-situation, for instance by unplugging the charger, > > > the backlight goes up to 100%. > > > > > > If I then try to set it back to 30% with backlight(8), nothing happens. > > > > > > If I use any other value, for instance 31%, backlight(8) does the job. > > > > > > I guess somewhere some code says "It's always 30%, just return" ? > > > > > > This might be a bit confusing if you have the intensity encoded in > > > some script, which then "sometimes does not work"... > > > > Smells like > > https://cgit.freebsd.org/src/commit/sys/dev/backlight/backlight.c?id=e26ef41f79902991c772b59927c721aa7fa5fc64 > > It's not in 13.1 but will be in 13.2 > > I'm running > > 14.0-CURRENT #0 main-n260119-7f2109f240c2: Mon Jan 16 22:54:18 UTC 2023 What does backlight reports after you've unplugged the AC adaptor ? -- Emmanuel Vadot <manu@bidouilliste.com> <manu@FreeBSD.org>