跳转至主要内容
退出

欢迎访问戴尔

我的帐户
  • 快速、轻松地下订单
  • 查看订单并跟踪您的发货状态
  • 创建并访问您的产品列表
  • 使用“Company Administration”（公司管理），管理Dell EMC站点、产品和产品级联系人。
登录 创建帐户 登录Premier 合作伙伴计划登录
联系我们

您的 Dell.com 购物车

某些文章编号可能已更改。如果这不是您要查找的内容，请尝试搜索所有文章。搜索文章

文章编号: 000189810

Troubleshooting Dell Monitor USB Downstream Port Issues

摘要: Discover why USB downstream ports on Dell monitors may not work. Learn how to fix recognition issues and ensure proper connections. Find solutions for common problems.

本文可能已自动翻译。如果您对其质量有任何反馈，请使用此页面底部的表单告知我们。

文章内容

症状

  • The USB downstream ports do not work on Dell monitors.
  • A USB device is not recognized when it is connected to the USB port on the monitor.

This issue is mostly noticed when the Dell monitor is connected to the computer using HDMI or DisplayPort cable.

Affected products

  • Dell monitors with USB downstream ports (Figure 1 and 2).
NOTE: The location of the USB downstream ports vary between Dell monitors. For model-specific information, see the User Manual of the Dell monitor.

Example of P2421D monitor with USB downstream ports on the bottom
Figure 1: Example of P2421D monitor with USB downstream ports on the bottom.

Example of P2421D monitor with USB downstream ports on the left side.
Figure 2: Example of P2421D monitor with USB downstream ports on the left side.

原因

This issue is caused if the USB upstream cable is not connected between the Dell monitor and the computer.

The HDMI and DisplayPort cables support audio and video only. For data transmission, the USB upstream cable must be connected between the Dell monitor and the computer.

NOTE: The USB-C input (DisplayPort or Thunderbolt) port on the Dell monitor supports audio, video, and data transmission. USB-C input (DisplayPort or Thunderbolt) port is available in select Dell monitors. To learn if your Dell monitor has a USB-C input (DisplayPort or Thunderbolt) port, see the User Manual of your Dell monitor.

解决方案

To ensure that the USB downstream ports on the Dell monitor work, connect the USB upstream cable between the Dell monitor and the computer.

Dell monitors have a USB Type-B or USB-C upstream port. A compatible USB upstream cable is shipped with the Dell monitor.

  1. Dell monitors with USB Type-B upstream port - Connect the provided USB Type-B to USB Type-A upstream cable between the Dell monitor and the computer.

    Example of P2421D monitor with USB Type-B upstream port
    Figure 3: Example of P2421D monitor with USB Type-B upstream port.

  2. Dell monitors with USB-C upstream port - Connect the provided USB-C to USB-C cable between the upstream port on the Dell monitor and the computer. If the computer does not have a USB-C port, use a USB-C to USB-A cable (optional purchase).

其他信息

Recommended Articles

Here are some recommended articles related to this topic that might be of interest to you.

文章属性

受影响的产品

Alienware and Dell Gaming Monitors, C Series, D Series, E Series, Legacy Monitors, P Series, S Series, SE Series, UltraSharp Premier (UP) Series, UltraSharp (U) Series

上次发布日期

08 2月 2024

版本

6

文章类型

Solution

返回页首