On Monday, March 19, 2018 6:01:45 PM CET Hans de Goede wrote: > Just like many other Samsung models, the 670Z5E needs to use the acpi-video > backlight interface rather then the native one for backlight control to > work, add a quirk for this. > > Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1557060 > 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 601e5d372887..43587ac680e4 100644 > --- a/drivers/acpi/video_detect.c > +++ b/drivers/acpi/video_detect.c > @@ -219,6 +219,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = { > "3570R/370R/470R/450R/510R/4450RV"), > }, > }, > + { > + /* https://bugzilla.redhat.com/show_bug.cgi?id=1557060 */ > + .callback = video_detect_force_video, > + .ident = "SAMSUNG 670Z5E", > + .matches = { > + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), > + DMI_MATCH(DMI_PRODUCT_NAME, "670Z5E"), > + }, > + }, > { > /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ > .callback = video_detect_force_video, > Applied, thanks!