[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAJZ5v0iYRxGLWgiTD5ouWLy84YN4ddnVshCNgiYJMbLdpK_ZRA@mail.gmail.com>
Date: Mon, 17 Apr 2023 13:40:14 +0200
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: "Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
Hans de Goede <hdegoede@...hat.com>
Cc: rafael@...nel.org, linux-kernel@...r.kernel.org,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH] ACPI: video: Add backlight=native DMI quirk for Lenovo
Ideapad Z470
On Mon, Apr 17, 2023 at 12:48 PM Jiri Slaby (SUSE) <jirislaby@...nel.org> wrote:
>
> From: Hans de Goede <hdegoede@...hat.com>
>
> 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>
> Cc: Hans de Goede <hdegoede@...hat.com>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Hans, can you please give your S-o-b for this one?
> ---
> 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,
> --
> 2.40.0
>
Powered by blists - more mailing lists