| Message ID | 20240513033834.9174-1-dengxiang@nfschina.com |
|---|---|
| State | New |
| Headers | show |
| Series | ACPI: video: Use vendor backlight on Lenovo X1 Carbon. | expand |
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 2cc3821b2b16..e647186b4e83 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -875,6 +875,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), }, }, + { + .callback = video_detect_force_vendor, + /* Lenovo X1 Carbon */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "KaiTian"), + DMI_MATCH(DMI_PRODUCT_NAME, "KaiTian X1 G1d"), + }, + }, { }, };
Lenovo X1 Carbon advertises both native and vendor backlight control interfaces.But Linux defaults to picking the native ACPI video backlight interface, which will make that the vendor zx_backlight interface to not work. Add a DMI quirk to force use of the vendor interface. Signed-off-by: dengxiang <dengxiang@nfschina.com> --- drivers/acpi/video_detect.c | 8 ++++++++ 1 file changed, 8 insertions(+)