Dell显示器没有声音

Symptoms

The audio playback does not work when a Dell monitor is connected to the computer using a DisplayPort or High Definition Media Interface (HDMI).

Cause

When an audio-supported video cable is being used such as a DisplayPort or HDMI cable, Windows may change the default audio playback device to the audio-supported cable assuming that another audio device is being used. The issue may occur when a laptop is coming out of sleep mode as the system is detecting the audio-capable cable first.

Resolution

Change the Playback Device configuration in Control Panel

NOTE: Only one device can be set as a default playback device.

To change the default sound playback device in Windows 10

1. Click Start, and then click Settings (gear icon).
2. Click System.
3. On the left menu, click Sound.
4. Under choose your output device, select the audio device that you want to use.

To change the default sound playback device in Windows 8 or 8.1

1. Right-click Start, and then click Control Panel.
2. Click Hardware and Sound.
3. Click Sound.
4. In the Playback tab, select the audio device that you want to use.
5. Click Set Default, and then click OK.

The external audio device causing the issue can be disabled so that the issue does not occur again.

Additional Information

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

Symptoms

No Audio from HDMI Connected LCD Display
Dell system users are reporting no audio from their display when connected to the system using an High-Definition Multimedia Interface (HDMI) cable connection.

Cause

NOTE: You may need to configure the audio input in the on screen display of the device you are using to use the speakers of the device.

 

NOTE: You should check the specifications for your Dell system. Not all Dell HDMI outputs, especially on older systems, support both audio and video. (HDMI Video out only)

Resolution

Solution: Adjust the Windows Audio Output Settings
The computer audio setting must be adjusted to acknowledge that a Flat Panel Display (FPD) device with audio support is connected to the system through HDMI.

These are the instructions for configuring HDMI audio out in Windows 8 for a Flat Panel Display equipped with HDMI audio support.

1. Right-Click the desktop.
2. Choose Personalize
3. Click on Sound (See Figure 1)

Figure 1: Windows sound settings

1. On the Playback tab, Click the HDMI Audio enabled display to highlight it, then click Set As Default, then Click OK. (See Figure 2)

Figure 2: Select HDMI connected monitor for playback

NOTE: If an option for HDMI Audio enabled display is not shown on the playback tab, your HDMI connection may not have audio capability. Not all HDMI capable graphics adapters or Displays have the HDMI audio channels enabled. Use of cable adapters may also prevent HDMI audio functionality.

Symptoms

Display does not support Audio.

Some Dell P-series displays that do not support audio but when first connected the monitor ICON appears and is selected as the default playback device. (See Figure 1 below.)

Figure 1.

Cause

The below affected models have HDMI/DisplayPort input but without audio support. This issue was observed with both AMD and Intel graphics.

P2416D

P1917S

P1917SHW

P2017H

P2217

P2217WH

P2217H

P2317H

P2317HWH

P2417H

P2717H

Resolution

Workaround.

Change the playback device to the system speakers and set as default. Once selected the selected speakers will appear after each reboot and the computer will retain the selected Speakers as default.

In some circumstances, upgrading the graphics adapter may be part of the final solution.

Solution

A New firmware and Extended Display Identification Data (EDID) were created to correct for the audio Icon issue.

The revision of the display will be A01 for the P2416D only.

If the default audio device reverts to the monitor after the computer is rebooted, updated the following firmware manually to resolve the issue.

WD15 Docks 1 Version 1.0.4, 1.0.4

Dell Wired Dock (WD15) / Docking Monitor Stand (DS1000) Firmware Update Utility

Enhancements: Improved external monitor connection stability.

Must be disconnected from the computer and all devices and power-cycled to complete the update.

Next install:

Intel Management Engine Components Installer

Realtek USB Audio Driver

Docks Stands Driver

ASMedia USB Extended Host Controller Driver

Dell P1917S, Dell P1917SWh, Dell P2017H, Dell P2217, Dell P2217H, Dell P2217Wh, Dell P2416D, Dell P2417H, Dell P2717H