Lenovo X1 Carbon advertises both native 0 and native 1 backlight
control interfaces.It will result that native zx_backlight
interface does not work.
Add a DMI quirk to force use of the vendor interface.
Signed-off-by: dengxiang <dengxiang@xxxxxxxxxxxx>
---
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 2cc3821b2b16..ed02b2d8b619 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -271,6 +271,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R600"),
},
},
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "KaiTian X1 G1d",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "KaiTian"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "KaiTian X1 G1d"),
+ },
+ },
/*
* Toshiba Portégé R100 has working both acpi_video and toshiba_acpi
--
2.30.2
