diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 06a006ff89b045b9f9857aac55274a3dd16b7369..15863a81d869889534b72676f798374d8e453017 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -478,6 +478,15 @@ static struct dmi_system_id video_dmi_table[] = {
 	 * control on these systems, but do not register a backlight sysfs
 	 * as brightness control does not work.
 	 */
+	{
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+	 .callback = video_disable_backlight_sysfs_if,
+	 .ident = "Toshiba Portege R700",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
+		},
+	},
 	{
 	 /* https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
 	 .callback = video_disable_backlight_sysfs_if,