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HP All-In-One Desktop Secondary Monitor Setup

DataPro Tech Info > HP All-In-One Desktop Secondary Monitor Setup

HP All-In-One Second Monitor

Ever wonder how to connect an external monitor to your HP all-in-one desktop computer?

Many models of HP All-In-One (AIO) desktop have no obvious way to connect a second monitor due to the lack of video ports, and models such as the HP Envy 23" and 27" have an input-only HDMI port. But don't worry, you can output video through the USB ports on your HP all-in-one desktop! Here's how:

  1. First you'll need a USB 3.0 to Video Adapter (USB 3.0 A to B cable included).
  2. Connect your computer to the USB to Video Adapter with your USB cable.
  3. Depending on the inputs available on your second monitor, connect it to the USB to Video Adapter with an HDMI, DVI-D or DVI to VGA cable.

Didn't work? Have a different type of All-In-One? We've got more information below!

Connecting a second monitor to an All-In-One


Dual Monitor Display Modes

If your All-In-One has an HDMI, DisplayPort, or Thunderbolt port:

To connect a second monitor to your All-In-One, all you'll need is the appropriate video cable. If your monitor's inputs are different from the output of your AIO, you may also need an adapter to convert the format into one compatible with your monitor.

Recommended cables:

All-In-One Dual Monitor Display Settings:

Generally speaking, external monitors can be used in one of three modes:
  • Duplicate: Displays the same image on all displays (also called mirroring.)
  • Extend: Combines all displays into one shared workspace (also called spanning)
  • Projector: Displays an image on the external display, while disabling the built-in display
These can be selected from within OS Display Settings in Windows or macOS.

Troubleshooting an external monitor:

  • Try restarting all involved devices

  • Make sure all cabling and hardware is undamaged

  • Check compatibility between all components. Keep in mind that just because a format can be physically adapted doesn't necessarily mean the signal is compatible.

  • Some adapters only work in one direction. For example, DisplayPort to HDMI, or DVI to VGA.

  • Make sure your software is up to date and properly configured - both the operating system and firmware. A firmware update from the manufacturer can sometimes resolve hardware issues.

If you don't have a video-out port, or only have an HDMI-in port:

If your HDMI port is an "Input" port, it cannot be used to connect an external display, but is intended to allow the use of the All-In-One itself as a display. In this case you can use a USB Display Adapter to connect an external monitor. These connect to a USB port, and provide one or more connections for external displays. Although these are typically less capable at 3D tasks, they can run desktop applications and full screen video.

Recommended solutions:


Using an All-In-One as a monitor for a laptop or game console:


HP All-In-One Ports
HDMI In/Out Ports

HP All-In-One Input Selector Switch
Input select button
Many All-In-Ones (AIOs) can be used as a display for game consoles, laptops, or other computers. If your HP All-In-One has an HDMI-in port, simply plug one end of an HDMI cable into your source device, and the other end to your AIO. Some AIOs will display the signal immediately, while others may require you to press the "Display Source" button, sometimes labeled "HDMI" or "Input Switch."

  • If your All-In-One does not have an HDMI-In port, it may have another type of input, such as DisplayPort or USB-C.

  • The source button is sometimes located on the bottom or back of the computer.

  • If your AIO does not have an input port, it cannot be used as an external or second monitor. Click here for information about the capabilities of specific models.



Frequently Asked Questions:



Why can't I use the HDMI port on my HP Envy all-in-one desktop?

The HDMI port on some models of HP all-in-one desktops is for input only. This is handy for when you want to use your desktop as a display for another device such as a video game console or DVD player, but it can preclude the use of a second monitor.

On the HP Envy all-in-one desktop, for example, the "HDMI IN" port is located on the lower left hand side of the monitor. To use it, just plug in your HDMI output device and switch the computer from PC mode to HDMI mode using the HDMI IN button under the bottom left hand side of the display. To change back to PC mode, just hold the HDMI IN button.

Why aren't USB-C alt modes working on my HP Envy?

Although advertised as a capability, a number of HP Envy systems of various types appear to to be unable to output video through their USB-C port.

In some cases this can be due to a limitation of the hardware. Alt Modes are used to transmit native HDMI or DisplayPort signals over a USB-C cable, and allow for it to be directly connected to a display. However to enable this feature, the computer must have the appropriate hardware. Some HP Envy systems only support the DisplayPort alt mode, and must be used with DisplayPort displays, or adapted to the proper format.

In other cases it appears that the USB-C port is not capable of video output at all. This may be due to hardware issues, or may be caused by a driver or firmware incompatibility.

HP does guarantee that any USB-C port advertised as "Thunderbolt 3" compatible will support standard Alt Modes, and can be adapted directly to HDMI or DisplayPort.

If your USB-C port doesn't appear capable of outputting video, you're not out of luck! You can still use an active USB to video adapter.

USB Video Adapters:

Does my HP Envy need a dual monitor adapter?

Generally speaking, an adapter is only necessary if the format of your source and display differ. If your AIO is not capable of outputting a video signal, you may benefit from a USB Display Adapter.

Do you have a giant chart of HP All-In-Ones that would indicate what ports and controls I might have?

As luck would have it, we do. This chart shows which models have video in/out capability, and whether they have a source select button.

TypeSeriesHDMI In/Out/Both/NoneInput Select Button Yes/No
Pavilion20-A100NoneN/A
Pavilion20-A200NoneN/A
Pavilion20-B000NoneN/A
Pavilion20-B100NoneN/A
Pavilion20-B200NoneN/A
Pavilion20-B300NoneN/A
Pavilion20-B400NoneN/A
Pavilion TouchSmart20-F400NoneN/A
Pavilion Touch20-F300NoneN/A
Pavilion TouchSmart20-F200NoneN/A
Pavilion TouchSmart20-F300NoneN/A
Pavilion21-A000NoneN/A
Pavilion21-A200NoneN/A
Pavilion Touch21-H000NoneN/A
Pavilion TouchSmart21-H000NoneN/A
Pavilion TouchSmart21-H100NoneN/A
Pavilion Touch22-A000OutN/A
Pavilion Touch22-A100OutN/A
Pavilion Touch22-A200OutN/A
Pavilion TouchSmart22-H000NoneN/A
Pavilion TouchSmart22-H100NoneN/A
Pavilion23-1000NoneN/A
Pavilion23-A000NoneN/A
Pavilion23-A200NoneN/A
Pavilion23-A300NoneN/A
Pavilion23-B000NoneN/A
Pavilion23-B100NoneN/A
Pavilion23-B200NoneN/A
Pavilion23-B300NoneN/A
Pavilion23-B400NoneN/A
Pavilion TouchSmart23-F400NoneN/A
Pavilion23-G000NoneN/A
Pavilion23-G100NoneN/A
Pavilion23-G200NoneN/A
Pavilion23-G300NoneN/A
Pavilion Touch23-H000NoneN/A
Pavilion TouchSmart23-H000NoneN/A
Pavilion Touch23-H100NoneN/A
Pavilion TouchSmart23-H100NoneN/A
Pavilion23-P000NoneN/A
Pavilion23-P100NoneN/A
Pavilion23-P200NoneN/A
Pavilion23-Q000OutN/A
Pavilion Touch23-Q000OutN/A
Pavilion23-Q100OutN/A
Pavilion Touch23-Q100OutN/A
Pavilion23-Q200OutN/A
Pavilion Touch23-F200NoneN/A
Pavilion Touch23-F300NoneN/A
Pavilion TouchSmart23-F200NoneN/A
Pavilion TouchSmart23-F300NoneN/A
Pavilion TouchSmart23-F400NoneN/A
Pavilion24-A000OutN/A
Pavilion24-A100OutN/A
Pavilion24-A200OutN/A
Pavilion24-B000OutN/A
Pavilion Touch24-B000OutN/A
Pavilion24-B100OutN/A
Pavilion24-B200OutN/A
Pavilion24-Q200OutN/A
Pavilion24-R000BothYes
Pavilion24-X000BothYes
Pavilion27-A000OutN/A
Pavilion Touch27-A000OutN/A
Pavilion27-A100OutN/A
Pavilion27-N000OutN/A
Pavilion TouchSmart27-N000OutN/A
Pavilion Touch27-N100OutN/A
Pavilion27-N200OutN/A
Pavilion Touch27-N200OutN/A
Pavilion27-QOutN/A
Pavilion27-R000BothYes
PavilionMS200NoneN/A
PavilionMS210NoneN/A
PavilionMS220NoneN/A
PavilionMS230NoneN/A
ENVY Touch20-D000NoneN/A
ENVY TouchSmart20-D000NoneN/A
ENVY TouchSmart20-D200NoneN/A
ENVY Rove20-K000NoneN/A
ENVY Rove20-K100NoneN/A
ENVY Rove20-K200NoneN/A
ENVY23-1000NoneN/A
ENVY23-C000NoneN/A
ENVY23-C100NoneN/A
ENVY Touch23-D000NoneN/A
ENVY TouchSmart23-D000NoneN/A
ENVY TouchSmart23-D100NoneN/A
ENVY TouchSmart23-D200NoneN/A
ENVY23-O000InYes
ENVY Recline TouchSmart23-K000InYes
ENVY Recline TouchSmart23-K100InYes
ENVY Recline TouchSmart23-K200InYes
ENVY Recline Touch23-K300InYes
ENVY Recline TouchSmart23-K300InYes
ENVY Recline TouchSmart23-K400InYes
ENVY Recline Touch Beats SE23-M100InYes
ENVY Recline TouchSmart Beats SE23-M100InYes
ENVY Recline TouchSmart Beats SE23-M200InYes
ENVY TouchSmart23SE-D300Model DependentModel Dependent
ENVY TouchSmart23SE-D400Model DependentModel Dependent
ENVY24-N000BothYes
ENVY Touch24-N000BothYes
ENVY Touch24-N100BothYes
ENVY Touch24-N200BothYes
ENVY27-B000BothYes
ENVY27-B100BothYes
ENVY Touch27-P000BothYes
ENVY Touch27-P100BothYes
ENVY Touch27-P200BothYes
ENVY Recline TouchSmart27-K000InYes
ENVY Recline Touch27-K100InYes
ENVY Recline TouchSmart27-K100InYes
ENVY Recline TouchSmart27-K200InYes
ENVY Recline Touch27-K300InYes
ENVY Recline TouchSmart27-K300InYes
ENVY Recline TouchSmart27-K400InYes
ENVY Recline Pro27InYes
ENVY Touch27-K000InYes
ENVY Curved34-A000BothNo
ENVY Curved34-A100BothNo
ENVY Curved34-A200BothNo
ENVY Curved34-B000BothYes
ENVY Curved34-A300BothYes
Spectre ONE23-E000InNo
Spectre ONE23-E200InNo
SproutOutN/A
Sprout ProOutN/A
Sprout Pro G2OutN/A
Slate17-L000OutN/A
Slate Pro21OutN/A
Slate21-K100NoneN/A
Slate21-S100NoneN/A
EliteOne Touch705 G2NoneN/A
EliteOne Non-Touch800 G1NoneN/A
EliteOne800 G1NoneN/A
EliteOne Non-Touch800 G2NoneN/A
EliteOne Touch800 G2NoneN/A
EliteOne Non-Touch800 G3OutN/A
EliteOne Touch300 G3OutN/A
EliteOne1000 G1OutN/A
EliteOne Touch1000 G1OutN/A
EliteOne 4kUHD1000 G1OutN/A
Pro1005NoneN/A
Pro3420NoneN/A
Pro3520NoneN/A
Pro MS200216BRNoneN/A
Pro MS200218NoneN/A
Pro MS200219BRNoneN/A
Pro MS200219LANoneN/A
ProOne400 G1NoneN/A
ProOne400 G2NoneN/A
ProOne400 G3 20inNoneN/A
ProOne400 G3 23.8inOutN/A
ProOne600 G1NoneN/A
ProOne600 G2NoneN/A
ProOne600 G3NoneN/A
HP 18-NoneN/A
HP 181000NoneN/A
HP 181100NoneN/A
HP 181200NoneN/A
HP 181300NoneN/A
HP 185000NoneN/A
HP 185100NoneN/A
HP 185200NoneN/A
HP 185500NoneN/A
HP 185600NoneN/A
HP 192000NoneN/A
HP 192100NoneN/A
HP 192200NoneN/A
HP 192300NoneN/A
HP 192400NoneN/A
HP 193000NoneN/A
HP 193200NoneN/A
HP 20(All)NoneN/A
HP 212000NoneN/A
HP 221000NoneN/A
HP 222000NoneN/A
HP 222100NoneN/A
HP 223000OutN/A
HP 22 Touch3000OutN/A
HP 223100OutN/A
HP 22 Touch3100OutN/A
HP 223200OutN/A
HP 22B000OutN/A
HP 22 TouchB000OutN/A
HP 22B100OutN/A
HP 22B200OutN/A
HP 22B300OutN/A
HP 23R000OutN/A
HP 23R100OutN/A
HP 23R200OutN/A
HP 23Beats N000InYes
HP 23Beats N100InYes
HP 23Beats N200InYes
HP 24E000OutN/A
HP 24G000OutN/A
HP 24 TouchG000OutN/A
HP 24G100OutN/A
HP 24G200OutN/A
HP 200205 G1NoneN/A
HP 200205 G2NoneN/A
HP 200205 G3OutN/A
HP 2005000NoneN/A
HP 2005100NoneN/A
HP 2005200NoneN/A
HP TouchSmart 300300-1000NoneN/A
HP TouchSmart 300300-1100NoneN/A
HP TouchSmart 300300-1200NoneN/A
HP TouchSmart 300300-1300NoneN/A
HP TouchSmart 300310-1000NoneN/A
HP TouchSmart 300310-1100NoneN/A
HP TouchSmart 300310-1200NoneN/A
HP TouchSmart 300320-1000NoneN/A
HP TouchSmart 300320-1100NoneN/A
HP TouchSmart 400420-1000NoneN/A
HP TouchSmart 400420-1100NoneN/A
HP Touch 500520-1160LAInNo
HP TouchSmart 500520-1000NoneN/A
HP TouchSmart 500520-1100InNo
HP TouchSmart 500520-1200NoneN/A
HP TouchSmart 600600-1000NoneN/A
HP TouchSmart 600600-1100InYes
HP TouchSmart 600600-1200NoneN/A
HP TouchSmart 600600-1300NoneN/A
HP TouchSmart 600600-1400InYes
HP TouchSmart 600610-1000NoneN/A
HP TouchSmart 600610-1100NoneN/A
HP TouchSmart 600610-1200NoneN/A
HP TouchSmart 600620-1000 3DNoneN/A
HP TouchSmart 600620-1100 3DNoneN/A
HP 10001105NoneN/A
HP 10001155NoneN/A
HP TouchSmart Elite 70007320NoneN/A
HP TouchSmart 91009100NoneN/A
HP TouchSmart Elite 93009300NoneN/A
HP TouchSmart IQ(All)NoneN/A
Compaq 18(All)NoneN/A
Compaq PresarioCQ1-(All)NoneN/A
Compaq PresarioSG2-(All)NoneN/A
HP Compaq 40004300NoneN/A
HP Compaq Pro6000NoneN/A
HP Compaq Pro6300NoneN/A
HP Compaq Elite8300NoneN/A
Omni100-(All)NoneN/A
Omni200-(All)NoneN/A
Omni27-1000NoneN/A
Omni27-1100InNo
Omni27-1200NoneN/A
Omni35-5100NoneN/A
Omni Pro110NoneN/A