Re: Subject: [PATCH] ACPI: video: Add backlight=native quirk for Dell OptiPlex AIO 7410 35W

Hi Rafael, Len, and Hans,

Just a gentle ping on this backlight quirk patch when you have a moment.

Please let me know if any changes are needed.

Thanks,
Anup

On Tue, Jun 16, 2026 at 12:29 AM Anup Keshwani <[email protected]> wrote:
>
> From b289e63d7f44500517dc94b7028b707616fd1dd1 Mon Sep 17 00:00:00 2001
> From: Anup Keshwani <[email protected]>
> Date: Tue, 16 Jun 2026 02:57:11 +0530
> Subject: [PATCH] ACPI: video: Add backlight=native quirk for Dell OptiPlex AIO
>  7410 35W
>
> Dell All In One (AIO) models released after 2017 may use a backlight
> controller board connected to a UART.
>
> In DSDT this uart port will be defined as:
>
> Name (_HID, "DELL0501")
> Name (_CID, EisaId ("PNP0501")
>
> Signed-off-by: Anup Keshwani <[email protected]>
> ---
>  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 458efa4fe..10e3c1657 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -886,6 +886,14 @@ static const struct dmi_system_id
> video_detect_dmi_table[] = {
>   DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 7770 AIO"),
>   },
>   },
> + {
> + .callback = video_detect_force_native,
> + /* Dell OptiPlex AIO 7410 35W */
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex AIO 7410 35W"),
> + },
> + },
>
>   /*
>   * Models which have nvidia-ec-wmi support, but should not use it.
> --
> 2.43.0