From: Lan Tianyu <tianyu.lan@xxxxxxxxx> The BIOS of FUjitsu E753 reports an incorrect initial backlight value for WIN8 compatible OS, causing backlight dark during startup. This patch ignores the incorrect initial value from BIOS. Reference:https://bugzilla.kernel.org/show_bug.cgi?id=60161 Reported-and-tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@xxxxxxxxx> Signed-off-by: Lan Tianyu <tianyu.lan@xxxxxxxxx> --- drivers/acpi/video.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 5d7075d..e441876 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -450,6 +450,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { }, { .callback = video_ignore_initial_backlight, + .ident = "Fujitsu E753", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E753"), + }, + }, + { + .callback = video_ignore_initial_backlight, .ident = "HP Pavilion dm4", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
