The Toshiba Satellite R830 needs disable_backlight_sysfs_if=1, just like the Toshiba Portege R830. Add a quirk for this. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=21012 Cc: stable@xxxxxxxxxxxxxxx # 4.2.x Tested-by: To Do <entodoays@xxxxxxxxx> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> --- drivers/acpi/acpi_video.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 408b014..a76f8be 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -496,6 +496,15 @@ static struct dmi_system_id video_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R830"), }, }, + { + /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ + .callback = video_disable_backlight_sysfs_if, + .ident = "Toshiba Satellite R830", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"), + }, + }, /* * Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set * but the IDs actually follow the Device ID Scheme. -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html