[Bug 220326] Mismatch between the meanings of brightness and actual_brightness

bugzilla-daemon at kernel.org bugzilla-daemon at kernel.org
Thu Jul 10 13:05:25 UTC 2025


https://bugzilla.kernel.org/show_bug.cgi?id=220326

--- Comment #1 from Van (kernvirt at gmail.com) ---
Update: I'm tested debian trixie kernel 6.12 lts, and there they use amdgpu_bl0
instead bl1, and brightness = actual_brigtness, Fedora also uses amdgpu_bl1,
just like Arch, but the situation is better at the time of kernel 6.14
brightness 50 = actual_brightness 33, 103/73, but still I don't know how to get
normal behavior in Arch and Fedora on the upstream version of the kernel

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