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Date:      Tue, 31 Jan 2023 11:23:59 +0200
From:      Oleksandr Kryvulia <shuriku@shurik.kiev.ua>
To:        freebsd-current@freebsd.org
Subject:   Re: Could not change brightness anymore with i915kms & acpi_video modules c 202211
Message-ID:  <6a997703-6f13-716d-d38d-1a2b910d52ec@shurik.kiev.ua>
In-Reply-To: <CABObuOoUDHrUF6FyTwEXTrnt3ztkoAR4x5vzjcNp7H-4F4XE7A@mail.gmail.com>
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[-- Attachment #1 --]
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?

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    31.01.23 09:52, parv/FreeBSD пише:<br>
    <blockquote type="cite"
cite="mid:CABObuOoUDHrUF6FyTwEXTrnt3ztkoAR4x5vzjcNp7H-4F4XE7A@mail.gmail.com">
      <div class="gmail_default" style="font-family:monospace"><br>
      </div>
      <div class="gmail_default" style="font-family:monospace">Since
        around 2022-11, I am unable to change display brightness</div>
      <div class="gmail_default" style="font-family:monospace">of the
        display of a Framework laptop (Intel i5-1135G7, Iris</div>
      <div class="gmail_default" style="font-family:monospace">Xe iGPU)
        with "i915kms" module (from "drm-510-kmod" package/port)</div>
      <div class="gmail_default" style="font-family:monospace">&amp;
        "acpi_video" (FreeBSD) kernel module.</div>
      <div class="gmail_default" style="font-family:monospace"><br>
      </div>
      <div class="gmail_default" style="font-family:monospace">Earlier I
        was able to change brightness via "hw.acpi.video" MIB ...</div>
      <div class="gmail_default" style="font-family:monospace"><br>
      </div>
      <div class="gmail_default" style="font-family:monospace"># - Need
        to have both "i915kms" &amp; "acpi_video" modules already
        loaded.<br>
        #<br>
        # 20221120 - These MIBs do not work anymore as they are missing.<br>
        hw.acpi.video.lcd0.economy=10<br>
        hw.acpi.video.lcd0.fullpower=40<br>
        hw.acpi.video.lcd0.brightness=15</div>
      <div class="gmail_default" style="font-family:monospace"><br>
      </div>
      <div class="gmail_default" style="font-family:monospace"><br>
      </div>
      <div class="gmail_default" style="font-family:monospace">... now
        the whole of "hw.acpi.video" stub is missing. Nothing has</div>
      <div class="gmail_default" style="font-family:monospace">changed
        in terms of how/when "i915kms" &amp; "acpi_video" are loaded
        (via</div>
      <div class="gmail_default" style="font-family:monospace">"kld_list"
        variable via "/etc/rc.conf" in that order).<br>
      </div>
      <br>
      <div class="gmail_default" style="font-family:monospace">What am I
        missing?</div>
    </blockquote>
    <br>
    Does backlight(8) works for you?<br>
    <br>
  </body>
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