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: stable@xxxxxxxxxxxxxxx Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html