diff mbox series

ACPI: video: Add backlight=native DMI quirk for Acer Aspire 4810T

Message ID 20230113114126.172078-1-hdegoede@redhat.com (mailing list archive)
State New, archived
Headers show
Series ACPI: video: Add backlight=native DMI quirk for Acer Aspire 4810T | expand

Commit Message

Hans de Goede Jan. 13, 2023, 11:41 a.m. UTC
The Acer Aspire 4810T 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 <hdegoede@redhat.com>
---
 drivers/acpi/video_detect.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Rafael J. Wysocki Jan. 17, 2023, 12:34 p.m. UTC | #1
On Fri, Jan 13, 2023 at 12:41 PM Hans de Goede <hdegoede@redhat.com> wrote:
>
> The Acer Aspire 4810T 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 <hdegoede@redhat.com>
> ---
>  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 d4edd64dcc2f..fb526ba8825b 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -515,6 +515,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
>                 DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
>                 },
>         },
> +       {
> +        .callback = video_detect_force_native,
> +        /* Acer Aspire 4810T */
> +        .matches = {
> +               DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
> +               DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 4810T"),
> +               },
> +       },
>         {
>          .callback = video_detect_force_native,
>          /* Acer Aspire 5738z */
> --

Applied as 6.2-rc material, thanks!
diff mbox series

Patch

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index d4edd64dcc2f..fb526ba8825b 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -515,6 +515,14 @@  static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
 		},
 	},
+	{
+	 .callback = video_detect_force_native,
+	 /* Acer Aspire 4810T */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 4810T"),
+		},
+	},
 	{
 	 .callback = video_detect_force_native,
 	 /* Acer Aspire 5738z */