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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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