From: Aaron Ma <aaron.ma@canonical.com>
Date: Mon, 16 Dec 2019 17:55:12 +0800
Subject: ACPI: video: Use native backlight on Lenovo E41-25/45
Patch-mainline: v5.6-rc1
Git-commit: 53870cf03faefa1f0d77fbc366db87d5beda203c
References: jsc#SLE-16407
ACPI backlight control doesn't work on 2 Lenovo E41 laptops.
So force to use native backlight control on them.
Signed-off-by: Aaron Ma <aaron.ma@canonical.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 | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -303,6 +303,22 @@ static const struct dmi_system_id video_
},
},
{
+ .callback = video_detect_force_native,
+ .ident = "Lenovo E41-25",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "81FS"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Lenovo E41-45",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82BK"),
+ },
+ },
+ {
/* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
.callback = video_detect_force_native,
.ident = "Apple MacBook Pro 12,1",