From 5e7a3bf65db57461d0f47955248fcadf37321a74 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 20 Mar 2023 16:59:46 +0100 Subject: [PATCH] ACPI: video: Add backlight=native DMI quirk for Acer Aspire 3830TG The Acer Aspire 3830TG predates Windows 8, so it defaults to using acpi_video# for backlight control, but this is non functional on this model. Add a DMI quirk to use the native backlight interface which does work properly. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- 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 14d6d81..fd7cbce 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[] = { }, { .callback = video_detect_force_native, + /* Acer Aspire 3830TG */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3830TG"), + }, + }, + { + .callback = video_detect_force_native, /* Acer Aspire 4810T */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Acer"), -- 2.7.4