Re: Could not change brightness anymore with i915kms & acpi_video modules c 202211

Reply: Poul-Henning Kamp: "Re: Could not change brightness anymore with i915kms & acpi_video modules c 202211"
In reply to: parv/FreeBSD: "Could not change brightness anymore with i915kms & acpi_video modules c 202211"
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From: Oleksandr Kryvulia <shuriku_at_shurik.kiev.ua>
Date: Tue, 31 Jan 2023 09:23:59 UTC

31.01.23 09:52, parv/FreeBSD пише:
>
> Since around 2022-11, I am unable to change display brightness
> of the display of a Framework laptop (Intel i5-1135G7, Iris
> Xe iGPU) with "i915kms" module (from "drm-510-kmod" package/port)
> & "acpi_video" (FreeBSD) kernel module.
>
> Earlier I was able to change brightness via "hw.acpi.video" MIB ...
>
> # - Need to have both "i915kms" & "acpi_video" modules already loaded.
> #
> # 20221120 - These MIBs do not work anymore as they are missing.
> hw.acpi.video.lcd0.economy=10
> hw.acpi.video.lcd0.fullpower=40
> hw.acpi.video.lcd0.brightness=15
>
>
> ... now the whole of "hw.acpi.video" stub is missing. Nothing has
> changed in terms of how/when "i915kms" & "acpi_video" are loaded (via
> "kld_list" variable via "/etc/rc.conf" in that order).
>
> What am I missing?

Does backlight(8) works for you?