linux-kernel - [PATCH] drm/nouveau: Resolve the issue of VGA not being recognized or disconnected

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Message-ID: <tencent_5382628D577DA53322CAA700F6308AB29006@qq.com>
Date: Mon, 27 Oct 2025 11:07:42 +0800
From: 2564278112@...com
To: lyude@...hat.com,
	dakr@...nel.org,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlie@...il.com,
	simona@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	nouveau@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	jiangwang@...inos.cn
Subject: [PATCH] drm/nouveau: Resolve the issue of VGA not being recognized or disconnected

From: Wang Jiang <jiangwang@...inos.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@...inos.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