From: Hans de Goede Date: Fri, 9 Jan 2015 16:22:57 +0100 Subject: ACPI / video: Add disable_native_backlight quirk for Samsung 730U3E/740U3E Origin: https://git.kernel.org/linus/3295d73002f4be341069a000aec4b8d7e5ea8d2c The Samsung 730U3E/740U3E has integrated ATI Radeon graphics, and backlight control does not work properly when using the native interfaces. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1094948 Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/video.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -711,6 +711,15 @@ static struct dmi_system_id video_dmi_ta DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"), }, }, + { + /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ + .callback = video_disable_native_backlight, + .ident = "SAMSUNG 730U3E/740U3E", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), + DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), + }, + }, { /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */