[PATCH 1/1] UBUNTU: SAUCE: ACPI: video: Use native backlight on Lenovo E41-25/45

[Aaron Ma]

BugLink: https://bugs.launchpad.net/bugs/1859561

ACPI backlight control doesn't work on 2 Lenovo E41 laptops.
So force to use native backlight control on them.

(cherry picked from https://patchwork.kernel.org/patch/11293665/)
Signed-off-by: Aaron Ma <aaron.ma at canonical.com>
---
 drivers/acpi/video_detect.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 43587ac680e4..f6add9d82fa9 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -294,6 +294,22 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "102434U"),
 		},
 	},
+	{
+	 .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,
-- 
2.20.1