From 03c440a26cba6cfa540d65924e9db86fcea362b2 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 14 Jul 2022 21:16:11 +0200 Subject: [PATCH] ACPI: video: Use native backlight on Dell Inspiron N4010 The Dell Inspiron N4010 does not have ACPI backlight control, so acpi_video_get_backlight_type()'s heuristics return vendor as the type to use. But the vendor interface is broken, where as the native (intel_backlight) works well, add a quirk to use native. Link: https://lore.kernel.org/regressions/CALF=6jEe5G8+r1Wo0vvz4GjNQQhdkLT5p8uCHn6ZXhg4nsOWow@mail.gmail.com/ Reported-and-tested-by: Ben Greening Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- 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 6615f59..5d7f380 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -349,6 +349,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { }, { .callback = video_detect_force_native, + /* Dell Inspiron N4010 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"), + }, + }, + { + .callback = video_detect_force_native, /* Dell Vostro V131 */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), -- 2.7.4