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

[Anup Keshwani]

Hi Rafael, len, and Hans,

Resending this reminder to Hans' updated kernel.org address (apologies
for the bounce).
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, Aug 4, 2026 at 11:10 PM Anup Keshwani <keshwani.anup@xxxxxxxxx> wrote:
>
> 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 <keshwani.anup@xxxxxxxxx> wrote:
> >
> > From b289e63d7f44500517dc94b7028b707616fd1dd1 Mon Sep 17 00:00:00 2001
> > From: Anup Keshwani <anup.keshwani@xxxxxxxx>
> > 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 <anup.keshwani@xxxxxxxx>
> > ---
> >  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