From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 14 Jul 2022 21:16:11 +0200
Subject: ACPI: video: Use native backlight on Dell Inspiron N4010
Patch-mainline: v6.0-rc1
Git-commit: 03c440a26cba6cfa540d65924e9db86fcea362b2
References: jsc#PED-1408
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 <bgreening@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
drivers/acpi/video_detect.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -349,6 +349,14 @@ static const struct dmi_system_id video_
},
{
.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."),