[v1] drm/nouveau: Resolve the issue of VGA not detecting disconnection

[PATCH] drm/nouveau: Resolve the issue of VGA not detecting disconnection

Posted by 2564278112@qq.com 3 months, 1 week ago

From: Wang Jiang <jiangwang@kylinos.cn>

When using the GT730, I found that the VGA could recognize when it was plugged in,
but could not detect when it was disconnected.
The reason is that the polled flag for the connector is missing DRM_CONNECTOR_POLL_DISCONNECT.

Signed-off-by: Wang Jiang <jiangwang@kylinos.cn>
---
 drivers/gpu/drm/nouveau/nouveau_connector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 63621b1510f6..dfff01edf65a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -1421,7 +1421,7 @@ nouveau_connector_create(struct drm_device *dev, int index)
 	connector->doublescan_allowed = false;
 
 	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
-	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+	connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
 
 	if (nvif_object_constructed(&nv_connector->conn.object)) {
 		ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",
-- 
2.25.1

Re: [PATCH] drm/nouveau: Resolve the issue of VGA not detecting disconnection

Posted by Thomas Zimmermann 3 months, 1 week ago


Am 27.10.25 um 04:16 schrieb 2564278112@qq.com:
> From: Wang Jiang <jiangwang@kylinos.cn>
>
> When using the GT730, I found that the VGA could recognize when it was plugged in,
> but could not detect when it was disconnected.
> The reason is that the polled flag for the connector is missing DRM_CONNECTOR_POLL_DISCONNECT.
>
> Signed-off-by: Wang Jiang <jiangwang@kylinos.cn>

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>

> ---
>   drivers/gpu/drm/nouveau/nouveau_connector.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
> index 63621b1510f6..dfff01edf65a 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_connector.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
> @@ -1421,7 +1421,7 @@ nouveau_connector_create(struct drm_device *dev, int index)
>   	connector->doublescan_allowed = false;
>   
>   	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
> -	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
> +	connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
>   
>   	if (nvif_object_constructed(&nv_connector->conn.object)) {
>   		ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)