This fixes the backlight control not working.

Cc: [email protected]
Reported-and-tested-by: Vincent Gerris <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
---
 drivers/acpi/video.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 8b6990e..c688b77 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -520,6 +520,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = 
{
                },
        },
        {
+        .callback = video_set_use_native_backlight,
+        .ident = "Acer Aspire V5-471G",
+        .matches = {
+               DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-471G"),
+               },
+       },
+       {
        .callback = video_set_use_native_backlight,
        .ident = "HP ProBook 4340s",
        .matches = {
-- 
1.9.0

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