Brightness control not working on IdeaPad 3 17ABA7 (amdgpu)

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linux debian amd-graphics brightness backlight

I have a Lenovo IdeaPad 3 17ABA7 with a fresh Debian Bullseye installation. Unfortunately the screen brightness control doesn't work out of the box. lspci lists the following video device:

04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barcelo (rev c2) (prog-if 00 [VGA controller])

I've already found various suggestions on the Internet, including boot options like acpi_backlight=vendor acpi_osi=Linux or amdgpu.backlight=0. None of those worked. How do I get the brightness control keys to work?

Asked by scai (11381 rep)

Nov 18, 2022, 07:05 PM

Brightness control not working on IdeaPad 3 17ABA7 (amdgpu)

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