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Message-ID: <0debbf68-ef69-2d1b-42d1-376c05186cbe@kernel.org>
Date:   Mon, 17 Jul 2023 12:20:35 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     rafael@...nel.org
Cc:     linux-kernel@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH v2] ACPI: video: Add backlight=native DMI quirk for Lenovo
 Ideapad Z470

Hi,

this has been likely lost. Should I resend?

Thanks.

On 18. 04. 23, 8:42, Jiri Slaby (SUSE) wrote:
> The Lenovo Ideapad Z470 predates Windows 8, so it defaults to using
> acpi_video for backlight control. But this is not functional on this
> model.
> 
> Add a DMI quirk to use the native backlight interface which works.
> 
> Link: https://bugzilla.suse.com/show_bug.cgi?id=1208724
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
> Reviewed-by: Hans de Goede <hdegoede@...hat.com>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
> 
> Notes:
>      [v2] fix authorship
> 
>   drivers/acpi/video_detect.c | 9 +++++++++
>   1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index 69ef2d9710c2..af5cea005f54 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -459,6 +459,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
>   		DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"),
>   		},
>   	},
> +	{
> +	 /* https://bugzilla.suse.com/show_bug.cgi?id=1208724 */
> +	 .callback = video_detect_force_native,
> +	 /* Lenovo Ideapad Z470 */
> +	 .matches = {
> +		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +		DMI_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Z470"),
> +		},
> +	},
>   	{
>   	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
>   	 .callback = video_detect_force_native,

-- 
js
suse labs

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