https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227869
Bug ID: 227869
Summary: Backlight brightness not working on Lenovo B570e
Product: Base System
Version: 11.1-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 192927
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=192927&action=edit
Verbose boot dmesg.
I'm aware that to control backlight you have to use graphics/intel-backlight
(is there any chance to see this exposed to sysctl in the future without
needing this kludge?) -- and it works if I bind it to some window manager keys.
However, I can not use the brightness keys via window manager nor devd, because
they generate no events at all. I have tried loading different acpi_* kernel
modules, and none of them work.
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