Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

ACPI: video: force native for Lenovo 82K8

Lenovo 82K8 has a broken brightness control provided by nvidia_wmi_ec.
Add a quirk to prevent using it.

Reported-by: Wilson Alvarez <wilson.e.alvarez@rubonnek.com>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4512
Tested-by: Wilson Alvarez <wilson.e.alvarez@rubonnek.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20250820170927.895573-1-superm1@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

authored by

Mario Limonciello (AMD) and committed by
Rafael J. Wysocki
f144bc21 1b237f19

+8
+8
drivers/acpi/video_detect.c
··· 948 948 DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), 949 949 }, 950 950 }, 951 + /* https://gitlab.freedesktop.org/drm/amd/-/issues/4512 */ 952 + { 953 + .callback = video_detect_force_native, 954 + .matches = { 955 + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 956 + DMI_MATCH(DMI_PRODUCT_NAME, "82K8"), 957 + }, 958 + }, 951 959 { }, 952 960 }; 953 961