On Monday, April 1, 2019 3:24:39 AM CEST Zhang Rui wrote: > On Sony Vaio VPCEH3U1E, ACPI backlight control does not work, and native > backlight works. Thus force use vendor backlight control on this system. > > Link: https://bugzilla.kernel.org/show_bug.cgi?id=202401 > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> > --- > drivers/acpi/video_detect.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c > index 43587ac..0e0a392 100644 > --- a/drivers/acpi/video_detect.c > +++ b/drivers/acpi/video_detect.c > @@ -141,6 +141,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { > DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"), > }, > }, > + { > + .callback = video_detect_force_vendor, > + .ident = "Sony VPCEH3U1E", > + .matches = { > + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), > + DMI_MATCH(DMI_PRODUCT_NAME, "VPCEH3U1E"), > + }, > + }, > > /* > * These models have a working acpi_video backlight control, and using > Applied, thanks!