The Lenovo IdeaPad S405 is a not "Windows8 ready" machine which still has
a broken ACPI video backlight implementation. Add a quirk to force use
of native backlight on this machine.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1201530
Cc: [email protected]
Signed-off-by: Hans de Goede <[email protected]>
---
 drivers/acpi/video_detect.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 2922f1f..0d3a384 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -244,6 +244,15 @@ static const struct dmi_system_id video_detect_dmi_table[] 
= {
 
        /* Non win8 machines which need native backlight nevertheless */
        {
+        /* https://bugzilla.redhat.com/show_bug.cgi?id=1201530 */
+        .callback = video_detect_force_native,
+        .ident = "Lenovo Ideapad S405",
+        .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+               DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"),
+               },
+       },
+       {
         /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
         .callback = video_detect_force_native,
         .ident = "Lenovo Ideapad Z570",
-- 
2.5.0

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