diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index d179e8d9177d..601e5d372887 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -103,6 +103,12 @@ static int video_detect_force_native(const struct dmi_system_id *d) return 0; } +static int video_detect_force_none(const struct dmi_system_id *d) +{ + acpi_backlight_dmi = acpi_backlight_none; + return 0; +} + static const struct dmi_system_id video_detect_dmi_table[] = { /* On Samsung X360, the BIOS will set a flag (VDRV) if generic * ACPI backlight device is used. This flag will definitively break @@ -313,6 +319,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"), }, }, + { + .callback = video_detect_force_none, + .ident = "Dell OptiPlex 9020M", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"), + }, + }, { }, };