Hi!
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 8cf04bb321f036dd2e523e993897e0789bd5265c ]
Linux defaults to picking the non-working ACPI video backlight interface on the Apple iMac12,1 and iMac12,2.
Add a DMI quirk to pick the working native radeon_bl0 interface instead.
This is queued for 5.10 and 6.4, but not 6.1. Mistake?
Best regards, Pavel