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Freedom251 › Blog › HDCP

Old PC Monitor to TV: What You Need to Make It Work

By Freedom251 Team · · 4 min read

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Often, yes: an old monitor with HDMI can display video from a streaming device. Whether the setup works depends on the monitor’s resolution and HDCP support, the connection between devices, and how you will hear the audio. A streaming player gives you internet apps; watching antenna channels requires a separate tuner.

What to check before you buy anything

Look at the monitor’s rear panel or manual and identify its inputs: HDMI, DVI, VGA, or DisplayPort. HDMI is usually the simplest connection. An adapter may help with an older input, but compatibility depends on signal direction, supported resolution, and copy protection.

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Also check whether the monitor has built-in speakers or an audio output you can use. HDMI can carry sound and video over one cable, but the display must have speakers or a usable audio path. VGA does not carry audio.

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Choose a setup that matches the monitor

Setup Best for Check first
Streaming stick connected directly by HDMI Internet apps on an HDMI monitor HDCP support, resolution, sound, Wi-Fi, and any app subscriptions
Streaming device plus audio accessory A monitor without useful speakers Whether the monitor has an audio output; whether the accessory supports the required audio format and HDCP
HDMI-to-VGA adapter A VGA-only monitor Signal direction, resolution, separate audio, and protected-content compatibility
Digital tuner or converter with a matching output Antenna broadcasts That the tuner’s output matches the monitor input, and that audio and video formats are supported

Check HDCP and resolution compatibility

HDCP is copy protection used to transmit some copyrighted video over digital connections. A streaming device, monitor, cable, and any adapter or intermediary in the chain may all affect compatibility. Google’s published requirements for its streaming devices call for a display with HDCP 1.3 or higher; 4K playback on that platform requires HDCP 2.2 and a 4K-capable display. Google’s streaming-device requirements also specify at least 20 Mbps internet for 4K. That is Google’s platform requirement, not a universal guarantee of streaming quality.

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  • COMPACT DESIGN - The compact-designed portable Benfei HDMI to VGA adapter connects a computer, desktop, laptop, or other devices with HDMI port to a monitor, projector, HDTV, or other devices with VGA port; Tuck this lightweight gadget into your bag or pocket to do a business presentation with your laptop and projector, or extend your desktop screen to a monitor or TV; A VGA cable is required.
  • SUPERIOR STABILITY - Built-in advanced IC chip converts HDMI digital signal to VGA analog signal; It is NOT a bi-directional converter and cannot transmit signals from VGA to HDMI
  • INCREDIBLE PERFORMANCE - The HDMI male to VGA female converter supports resolutions up to 1920x1080@60Hz (1080p Full HD) including 720p, 1600x1200, 1280x1024 for high definition monitors or projectors; Gold plated HDMI connector resists corrosion and abrasion and improve the signal transmission performance; Molded strain relief increases cable durability
  • BROAD COMPATIBILITY - The HDMI-VGA adapter is compatible with computer, pc, desktop, laptop, ultrabook, notebook, Chromebook, Raspberry Pi, Intel Nuc, Roku, PS3, Xbox One, Xbox 360, Wii U, Set Top Box, TV BOX, or other devices with HDMI port; NOT compatible with Blu-ray player and devices with low-power HDMI ports such as SONY PS4, Apple MacBook Pro with Retina Display, Mac mini, and Apple TV
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The monitor’s maximum resolution also matters. A streamer cannot make a display show more detail than its panel supports, and the connection chain can impose further limits. If the monitor is not 4K, the image will be limited by its capabilities even if the streaming device and service offer 4K.

Connect a streaming device and test the sound

  1. Identify the monitor’s input. Use the rear panel or manual to confirm whether it has HDMI, DVI, VGA, or DisplayPort. Do not assume an adapter works in both directions.
  2. Connect the streaming player. For an HDMI monitor, connect the player directly to HDMI and select that input using the monitor’s input controls. Roku says its players connect to displays with HDMI; HP’s display troubleshooting guidance also recommends choosing the matching input.
  3. Confirm copy-protection support. Check the monitor and any adapter or intermediary against the streaming device’s HDCP requirements. Google’s requirements are HDCP 1.3 or higher for its devices, with HDCP 2.2 for 4K.
  4. Verify that you can hear the audio. Try the monitor’s speakers or audio output. If it has neither, use compatible speakers or audio hardware supported by the player and the display connection. With VGA, plan a separate audio connection.
  5. Check your network and apps. Wi-Fi access and any subscriptions or additional service terms are separate from the monitor connection; available apps and subscriptions vary by device and region.

Use a tuner for antenna channels

A streaming stick is not a broadcast-TV tuner. To watch over-the-air channels, use a digital tuner or converter box with an output the monitor accepts. Check the tuner’s exact output, the monitor’s input, and the audio path before buying; a connector match alone does not establish that the devices will work together.

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When adapters work—and when they do not

An HDMI-to-VGA adapter may convert the connector and signal for some video, but it is not a reliable workaround for protected streaming. Compatibility depends on the adapter and the content-protection requirements of the service. Apple notes that VGA carries no audio and that some movies and streaming apps require an HDCP-compatible connection: Apple’s adapter guidance. One UGREEN HDMI-to-VGA adapter specification likewise warns that protected services may not display; that limitation is specific to that product, not proof that every adapter behaves the same way.

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Troubleshoot a blank screen or HDCP error

If video fails or an HDCP error appears, the display, cable, adapter, or another HDMI device in the connection may not support the required protection. Roku describes this issue in its HDCP error guidance.

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  • SUPERIOR STABILITY: Built-in advanced IC chip converts HDMI digital signal to VGA analog signal; It is NOT a bi-directional converter and cannot transmit signals from VGA to HDMI
  • INCREDIBLE PERFORMANCE: The HDMI male to VGA female converter supports resolutions up to 1920x1080@60Hz (1080p Full HD) including 720p, 1600x1200, 1280x1024 for high definition monitors or projectors; Gold plated HDMI connector resists corrosion and abrasion and improves the signal transmission performance; Molded strain relief increases cable durability
  • BROAD COMPATIBILITY: The HDMI-VGA adapter is compatible with computer, pc, desktop, laptop, ultrabook, notebook, Chromebook, Raspberry Pi, Intel Nuc, PS3, Xbox One, Xbox 360, Wii U, Set Top Box, TV BOX, or other devices with HDMI port; *NOT COMPATIBLE* with Roku, Blu-ray player and devices with low-power HDMI ports such as SONY PS4, Apple MacBook Pro with Retina Display, Mac mini, and Apple TV
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  • Reselect the monitor input that the player is connected to.
  • Try a different HDMI cable or monitor input.
  • Connect the player directly to the monitor, temporarily removing an adapter or other intermediary. This can help isolate which part of the chain is causing the problem.
  • If the picture appears but the audio does not, check the monitor’s audio settings and output connections. A VGA connection needs a separate audio path.
  • If protected video still does not work through a VGA adapter, use a compatible digital connection rather than assuming a different adapter will bypass HDCP.
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Is an old monitor a practical TV replacement?

It can be a useful screen for streaming if it has a compatible input, the required HDCP support, and a workable audio setup. It will not receive antenna channels without a tuner, and adapters cannot guarantee protected-content playback. Check those limits before buying a streaming device or accessories.

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BENFEI HDMI to VGA, Uni-Directional HDMI Computer to VGA Monitor Adapter (Female to Male) with 3.5mm Audio Jack Compatible with TV Stick, Computer, Desktop, Laptop, PC, Monitor, Projector, Roku, Xbox
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  • AUDIO SYNC SUPPORTED - Comes with an independent output of 3.5mm audio, external audio, to achieve simultaneous audio and video playback. you could connect to the speaker via the included 3.5mm audio cable. Include a Micro USB port, essential for devices with low-power output. ❗If you're not sure, try connecting.❗
  • INCREDIBLE PERFORMANCE - The HDMI female to VGA male converter supports resolutions up to 1920x1080@60Hz (1080p Full HD) including 720p, 1600x1200, 1280x1024 for high definition monitors or projectors; Gold plated HDMI connector resists corrosion and abrasion and improve the signal transmission performance; Molded strain relief increases cable durability.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

HDCPHDMIPC monitorsstreaming devicesTV tuners

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