Lenovo Slim 7 16ARH7 is a machine with switchable graphics between AMD and Nvidia, and the backlight can't be adjusted properly unless acpi_backlight=native is passed. Although nvidia-wmi-backlight is present and loaded, this doesn't work as expected at all. For making it working as default, add the corresponding quirk entry with a DMI matching "LENOVO" "82UX". Link: https://bugzilla.suse.com/show_bug.cgi?id=1217750 Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> --- 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 9fdcc620c652..2cc3821b2b16 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -497,6 +497,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "82BK"), }, }, + { + .callback = video_detect_force_native, + /* Lenovo Slim 7 16ARH7 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "82UX"), + }, + }, { .callback = video_detect_force_native, /* Lenovo ThinkPad X131e (3371 AMD version) */ -- 2.43.0
