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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <305e7ccf-82bc-43dd-8fac-1c39ffe183d3@suse.de>
Date: Mon, 27 Oct 2025 08:24:14 +0100
From: Thomas Zimmermann <tzimmermann@...e.de>
To: 2564278112@...com, lyude@...hat.com, dakr@...nel.org,
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org, airlie@...il.com,
 simona@...ll.ch, dri-devel@...ts.freedesktop.org,
 nouveau@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 jiangwang@...inos.cn
Subject: Re: [PATCH] drm/nouveau: Resolve the issue of VGA not detecting
 disconnection



Am 27.10.25 um 04:16 schrieb 2564278112@...com:
> 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>

Reviewed-by: Thomas Zimmermann <tzimmermann@...e.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)