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Connecting a Monitor to an All-in-One PC

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This document pertains to HP All-in-One and TouchSmart PCs with Windows 7 and a USB graphics adapter for connecting a monitor and extending or mirroring the Windows desktop.
You can connect a monitor or television to your PC as the primary or secondary display (monitor). This document describes how to connect a monitor to a TouchSmart or All-in-One PC using a USB graphics adapter.
Because a TouchSmart or All-in-One PC has a built-in monitor, an extra graphics card or graphics connectors are not available. For this reason, to add a monitor you need a USB graphics adapter. These adapters provide a way to connect additional displays through the USB ports on the TouchSmart or All-in-One. This allows you to:
  • Add up to six monitors (one per USB port and adapter) to one computer
  • Extend the Windows 7 desktop across multiple displays
  • Mirror your primary screen, or view more applications at the same time
  • Add DVI or VGA monitors, or HDMI TVs or monitors
CAUTION:If you have an HP TouchSmart, only use a graphics adapter to mirror your displays. HP TouchSmart software was not designed to operate with additional displays operating in extended desktop mode. TouchSmart software is fully compatible with graphics adapter software if used in mirror mode. To setup a TouchSmart PC in mirror mode, see Configuring multiple displays in Windows 7 (in English) below.

View a video on connecting a monitor or TV to your PC

This video contains a section on adding a monitor to a TouchSmart or All-in-One PC using a USB graphics adapter and a USB port.
(in English)

Connecting a USB Graphics Adapter

NOTE:These steps apply to the setup of a single additional monitor using a USB graphics adapter on a TouchSmart or All-in-One PC. Repeat these steps to add monitors (up to six) to your TouchSmart or All-in-One PC.
Check the cable on the monitor. Depending on the cable, select a USB graphics adapter kit with the input port or connectors that match your monitor.For example: If your new monitor has a DVI cable, you could select an HP USB Graphics Adapter. Connect the monitor cable directly into the DVI port on the graphics adapter. Connect the USB cable on the graphics adapter to one of the USB ports on the TouchSmart or All-in-One PC.
Figure 1: Example adapter - HP USB Graphics Adapter
Image of the HP USB Graphics Adapter.
USB graphics adapter kits usually include a DVI-to-VGA adapter for monitors with a VGA connector. Some kits include a DVI-to-HDMI connector. Many combinations are available, so check your monitor cable to determine the graphics adapter and connectors you need.
Figure 2: DVI-to-VGA connector
Image of the DVI-to-VGA connector
Figure 3: DVI to HDMI connector
Image of a DVI to HDMI connector
To connect the display using a USB graphics adapter and USB cable:
  1. Turn off the monitor or TV. (It is not necessary to shut down the computer.)
  2. Connect the USB cable to the graphics adapter port and to one of the USB ports on the TouchSmart or All-in-One PC.
  3. Connect the monitor cable to the input port on the graphics adapter, adding a DVI-to-VGA, or DVI-to-HDMI connector as necessary to complete the connection.
    The USB graphics adapter wizard automatically installs the device driver software.
    If the installation wizard does not start automatically, go to Installing the graphics adapter software for installation instructions.
  4. When the device driver installation is complete, turn on the monitor.
Figure 4: Connecting an All-in-One PC to an additional monitor using an HP USB Graphics Adapter.
Image of HP USB Graphics Adapter connecting an All-in-One PC to a monitor

Installing the graphics adapter software

After the adapter is connected between the computer and the monitor, most graphics adapter wizards automatically install the device driver software. Follow the on-screen instructions. Installation may take a few minutes and the screen may blink and flash during the installation process.
By using the USB graphics adapter software, you can adjust the monitor or television to create a better viewing experience on your display.
To manually install the graphics adapter software, follow these steps:
NOTE:Connect the monitor to the TouchSmart or All-in-One PC before opening the graphics adapter software.
    Most USB graphics adapter kits include a CD containing the device software. Insert the CD in the CD/DVD player on your TouchSmart or All-in-One PC and follow the on-screen instructions.
    Device drivers can usually be found on your graphics adapter manufacturer's website. Follow the download instructions found on that website.
When the installation is complete the Screen Resolution window opens. Continue setting up your displays at Configuring multiple displays in Windows 7 .

Configuring multiple displays in Windows 7

When the device driver installation is complete, the Change the appearance of your displays screen opens on your TouchSmart or All-in-One PC desktop.
You can detect, identify, and change what you see on the monitor and the TouchSmart or All-in-One PC by changing settings on this screen. If you have an All-in-One PC, you can extend your display across all installed monitors. If you have a TouchSmart PC, go to Multiple Displays: and select Duplicate these displays . Then clickApply . This mirrors your displays.
NOTE:If you ever need to recover the computer operating system by using the Recovery Manager, repeat this procedure to reconfigure the displays.
Figure 5: Change the appearance of your displays
Image of the graphics adapter configuration screen

Configuring the mouse pointer direction and switching the displays

When the installation is complete, your All-in-One PC and the new display are, by default, in extended mode, and the mouse pointer is associated with your main display. The mouse moves continuously from left to right across the extended displays - from display 1 (main display) to display 2 (new display) .
You can switch displays and the direction the mouse pointer travels.
NOTE:If you have a TouchSmart PC, go to Multiple Displays: and select Duplicate these displays , and then click Apply . Continue your TouchSmart PC display setup and configuration at Changing the display appearance below.
    1. Select the new monitor from the Displays list.
    2. Check the Make this my main display box.
      Figure 7: Switch main display
      Image of Screen Resolution - changing displays.
    3. Click Apply . The screen may flicker or go blank for a few second while the settings change.
      The Windows 7 toolbar and desktop icons display on the new monitor, and the All-in-One PC display duplicates your desktop background. The mouse moves from left to right, from your main display (2) , to the All-in-One PC screen (1) .
    By default, the mouse pointer moves from the main display to the new display.
    To reverse the direction the mouse pointer travels:

Changing the display appearance

The following features can help you get the most from your displays. Select a display and change the resolution, orientation, text size, or get help. By going to the Advanced settings , you can configure the built-in graphics device on your TouchSmart or All-in-One PC.
FeatureOptions
Display:
NOTE:This is a sample list. The list of displays on your computer depends on your computer's configuration and the monitors you have installed.
  • 1. HP TouchSmart
  • 2. HP LP2275w
  • Available display output on: ATI Radeon HD 3200 Graphics
Resolution:The default resolution is the (recommended) resolution. To get help setting up the display resolution, go to What display setting should I choose?
Orientation:This setting applies to the display selected in Display:

  • Landscape - Default
  • Portrait - Turns the screen 90° with the top on the left side.
  • Landscape (flipped) - Turns the screen 180°.
  • Portrait (flipped) - Turns the screen 90° with the top on the right side.
Multiple Displays:When changing these display options, the following message appears:

You must select Apply before making additional changes.

  • Duplicate these displays - Often referred to as mirroring the displays, this option is often used to project the desktop to a large screen so that a group can see what is taking place on the TouchSmart or All-in-One PC.
  • Extend these displays - Option should only be used for All-in-One PCs or TouchSmart PCs not using the TouchSmart software. - Enlarges the desktop to include all detected displays
  • Show desktop only on 1 - Windows 7 desktop is only on display 1, and display 2 is blank.
  • Show desktop only on 2 - Windows 7 desktop is only on display 2, and display 1 is blank.
Advanced settingsConfigure and setup for the graphics card that came with your computer.
Make text and other items larger or smallerAdjust text and other items on your screen by changing these options.
What display setting should I choose?Get Help choosing the best display settings for your computer and monitor.

Troubleshooting

SymptomSolution
No sound
  • DVI does not carry an audio signal. If you used a DVI-to-HDMI adapter, to hear sound through the display, you must connect the computer Audio Line Out connector to the DVI Audio In connector on the display. Also, do not select HDMI as the default audio device in Windows 7.
  • When you use HDMI to connect your display, you need to adjust some settings through Windows 7 to hear sound through the display. Because of this, HP recommends that you connect analog speakers to the computer Audio Line Out connector if you want to hear sound during the initial setup of the computer
  • Most sound problems can be fixed by checking your hardware setup, or by using Windows 7 Troubleshooters. For information about Windows 7 sound problems, go to No Sound in Windows (in English).
No picture
  • Check that the display is connected to the computer and turned on.
  • Verify the input source on the monitor matches the connection type. For help, see the monitor's setup instructions.
    For example: DVI is the input source for a DVI connector on the monitor.
  • Check Multiple displays: setting is not set to Show desktop on only 1 (or 2) . See Multiple displays: above.
Image resolution, position, size, or color is wrong.Check that your USB graphics adapter supports the monitor resolution.

Change the Windows display settings to match the resolution of the display.

See Change the display appearance above.
The display does not appear as a device in the USB graphics adapter software.If you connected the monitor after the software was opened, close the software and open it again. Some software does not recognize a display added or attached while the software is open.
Picture quality has an issue.Use a USB cable five meters (16 feet) or less in length. Longer distances can result in signal degradation and possible loss in audio and video quality. For longer distances, or for viewing 1080P or higher video definition, use a higher quality cable (Category 2) or a signal amplifier.
There are blank or missing tiles in the TouchSmart window.

Blank or missing tiles may be displaced to the secondary monitor.

Intermittently, the touch screen calibration may be off significantly in both the TouchSmart software screens and in the Windows interface.
HP TouchSmart software was not designed to operate with additional displays operating in extended desktop mode. The HP TouchSmart software and touch screen functionality are fully compatible with USB graphics adapters and additional displays if the additional displays are operating in mirror mode. If you wish to extend the desktop to a secondary monitor:

  • Do not launch the HP TouchSmart software.
  • Use the mouse and keyboard instead of the touch screen functionality.


If you have already launched the software, try closing it. If this does not restore the display (eliminate the blank tiles), restart the system.

Related Support

NOTE:One or more of the links in this document will take you outside the Hewlett-Packard Web site. HP does not control and is not responsible for information outside of the HP Web site.

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