[Bug 296261] Brightness keys doesn't work after loading i915kms on ThinkPad T420/X230 with Coreboot

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D296261

[email protected] changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #2 from [email protected] ---
On my Thinkpad T495 I have from 2024 in /etc/devd/acpi_ibm_brightness.conf
whichh has:
notify 20 {
       match "system" "ACPI";
       match "subsystem" "IBM";
       match "notify" "0x10";
       action "/usr/bin/backlight incr 10";
 };

notify 20 {
       match "system" "ACPI";
       match "subsystem" "IBM";
       match "notify" "0x11";
       action "/usr/bin/backlight decr 10";
 };

I need to adjust after each laptop restart but it works.

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