* [PATCH] ACPI: video: force native for Lenovo 82K8
@ 2025-08-20 17:09 Mario Limonciello (AMD)
2025-08-25 18:01 ` Rafael J. Wysocki
0 siblings, 1 reply; 2+ messages in thread
From: Mario Limonciello (AMD) @ 2025-08-20 17:09 UTC (permalink / raw)
To: mario.limonciello, rafael, lenb
Cc: Mario Limonciello (AMD), Daniel Dadap, Hans de Goede,
Wilson Alvarez, linux-acpi
Lenovo 82K8 has a broken brightness control provided by nvidia_wmi_ec.
Add a quirk to prevent using it.
Cc: Daniel Dadap <ddadap@nvidia.com>
Cc: Hans de Goede <hansg@kernel.org>
Reported-by: Wilson Alvarez <wilson.e.alvarez@rubonnek.com>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4512
Tested-by: Wilson Alvarez <wilson.e.alvarez@rubonnek.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
---
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 d507d5e084354..4cf74f173c785 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -948,6 +948,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
},
},
+ /* https://gitlab.freedesktop.org/drm/amd/-/issues/4512 */
+ {
+ .callback = video_detect_force_native,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82K8"),
+ },
+ },
{ },
};
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ACPI: video: force native for Lenovo 82K8
2025-08-20 17:09 [PATCH] ACPI: video: force native for Lenovo 82K8 Mario Limonciello (AMD)
@ 2025-08-25 18:01 ` Rafael J. Wysocki
0 siblings, 0 replies; 2+ messages in thread
From: Rafael J. Wysocki @ 2025-08-25 18:01 UTC (permalink / raw)
To: Mario Limonciello (AMD)
Cc: mario.limonciello, rafael, lenb, Daniel Dadap, Hans de Goede,
Wilson Alvarez, linux-acpi
On Wed, Aug 20, 2025 at 7:09 PM Mario Limonciello (AMD)
<superm1@kernel.org> wrote:
>
> Lenovo 82K8 has a broken brightness control provided by nvidia_wmi_ec.
> Add a quirk to prevent using it.
>
> Cc: Daniel Dadap <ddadap@nvidia.com>
> Cc: Hans de Goede <hansg@kernel.org>
> Reported-by: Wilson Alvarez <wilson.e.alvarez@rubonnek.com>
> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4512
> Tested-by: Wilson Alvarez <wilson.e.alvarez@rubonnek.com>
> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
> ---
> 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 d507d5e084354..4cf74f173c785 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -948,6 +948,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
> DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
> },
> },
> + /* https://gitlab.freedesktop.org/drm/amd/-/issues/4512 */
> + {
> + .callback = video_detect_force_native,
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "82K8"),
> + },
> + },
> { },
> };
>
> --
Applied as 6.18 material, thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
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