From: Hans de Goede <hdegoede@xxxxxxxxxx> [ Upstream commit bd5d93df86a7ddf98a2a37e9c3751e3cb334a66c ] Linux defaults to picking the non-working ACPI video backlight interface on the Lenovo ThinkPad X131e (3371 AMD version). Add a DMI quirk to pick the working native radeon_bl0 interface instead. Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/acpi/video_detect.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 872b5351f0d8f..b02d381e78483 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -332,6 +332,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "82BK"), }, }, + { + .callback = video_detect_force_native, + /* Lenovo ThinkPad X131e (3371 AMD version) */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "3371"), + }, + }, { .callback = video_detect_force_native, /* Apple iMac11,3 */ -- 2.39.2