[Bug 111503] New: [NVAA] Impossible to adjust brightness

[Bug 111503] New: [NVAA] Impossible to adjust brightness

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https://bugs.freedesktop.org/show_bug.cgi?id=111503

            Bug ID: 111503
           Summary: [NVAA] Impossible to adjust brightness
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: minor
          Priority: not set
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: giallorosso84-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 145179
  --> https://bugs.freedesktop.org/attachment.cgi?id=145179&action=edit
Attached my kernel log

In a laptop with Amd processor (Turion 64x2) and nvidia GeForce 8200M G
graphics [NVAA] i can't adjust the screen brightness with the fn keys. The
driver currently in use is xorg-nouveau 1.0.16. The kernel currently in use is
5.2.9

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[Bug 111503] [NVAA] Impossible to adjust brightness

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https://bugs.freedesktop.org/show_bug.cgi?id=111503

--- Comment #1 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Which backlights do you have available? (ls /sys/class/backlight)

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[Bug 111503] [NVAA] Impossible to adjust brightness

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https://bugs.freedesktop.org/show_bug.cgi?id=111503

--- Comment #2 from Claudio Pantaleo <giallorosso84-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
On /sys/class/backlight there are two backlights, acpi_video0 and nv_backlight.
My distro in use is Solus, but the brightness never worked with any distro.

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[Bug 111503] [NVAA] Impossible to adjust brightness

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https://bugs.freedesktop.org/show_bug.cgi?id=111503

--- Comment #3 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Can you manually echo values into both and see which, if any, works? (There
should be a pretty obvious file in there, like "brightness", or something...)

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[Bug 111503] [NVAA] Impossible to adjust brightness

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https://bugs.freedesktop.org/show_bug.cgi?id=111503

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #4 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/501.

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