ACPI / video: Disable native_backlight on HP ENVY 15 Notebook PC

Link: https://bugs.freedesktop.org/show_bug.cgi?id=81515
Reported-and-tested-by: Hohahiu <rakothedin@gmail.com>
Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index dd5c30257b8638f16967f4461dd8c9bc70e84dad..fcbda105616eb703b87e50ee88650cd4dde72d78 100644 (file)
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -750,6 +750,17 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T520"),
                },
        },
+
+       /* The native backlight controls do not work on some older machines */
+       {
+        /* https://bugs.freedesktop.org/show_bug.cgi?id=81515 */
+        .callback = video_disable_native_backlight,
+        .ident = "HP ENVY 15 Notebook",
+        .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"),
+               },
+       },
        {}
 };