Bug 111503 - [NVAA] Impossible to adjust brightness
Summary: [NVAA] Impossible to adjust brightness
Status: NEW
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: not set minor
Assignee: Nouveau Project
QA Contact: Xorg Project Team
Depends on:
Reported: 2019-08-27 17:17 UTC by Claudio Pantaleo
Modified: 2019-08-27 18:02 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attached my kernel log (57.20 KB, text/plain)
2019-08-27 17:17 UTC, Claudio Pantaleo
no flags Details

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Description Claudio Pantaleo 2019-08-27 17:17:02 UTC
Created attachment 145179 [details]
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
Comment 1 Ilia Mirkin 2019-08-27 17:23:36 UTC
Which backlights do you have available? (ls /sys/class/backlight)
Comment 2 Claudio Pantaleo 2019-08-27 17:39:19 UTC
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.
Comment 3 Ilia Mirkin 2019-08-27 18:02:51 UTC
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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