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Why is there touch response randomly on my TD2220/TD2421 even nobody touches the screen?

These models are optical touch monitors which use two CMOS cameras (optical sensors) placed in the corners at the top of the screen as well as three reflectors (light strips). These cameras are used to look across the entire touch surface for touch events. When an object touches the screen, it blocks some of the light being received by the se...

How to set power lock and menu lock?

On some monitors, there is a power button lock that locks the power and power button in the ON position.  There is also a menu lock feature which can lock and unlock the OSD (On-Screen Display) Menu.  Power Lock: To lock the Power Button press and hold both the [1] button and the down arrow button for 10 seconds.  OSD Lock: ...

How to set Landscape and Portrait mode on your monitor?

Change the orientation in your OS Display Settings and ensure your stand supports physical rotation. Use vDisplay Manager for automatic switching. 1. Physical Adjustment: Tilt the screen back and raise the stand to its maximum height before rotating 90 degrees clockwise. 2. Windows 10/11 Setup: Right-click on the desktop and select [Di...

Why Your Monitor Mount Joint Might Be Stiff

The rotation axis of the Arm Hinge may feel tight or exhibit restricted movement. This is by design, as the axis incorporates a degree of resistance to help prevent the monitor from dropping, tilting, or moving unintentionally after installation. Before a monitor is installed or when the monitor’s weight is not applied, the rotation...

Which cable do I need to support a 144Hz refresh rate?

To achieve 144Hz, you must use the correct version of DisplayPort (DP) or HDMI based on your resolution. DP is the recommended interface for high refresh rates. Cable Requirement Table: Target Resolution Recommended Cable (or higher) Note 1080p (FHD) DisplayPort / HDMI 1.3 Supported by most modern cables 1440p (2K) DisplayPort 1.2 /...

What should I do if there is no video signal when using the HDMI port?

Ensure the monitor is set to the correct HDMI input source and that the cable is firmly connected to the graphics card (GPU) output, not the motherboard. Verify Physical Connections: Unplug and re-seat the HDMI cable at both ends. Note: For desktop PCs, ensure the cable is plugged into the dedicated Graphics Card (GPU) port rather ...

How to solve the problem with my monitor turning off automatically?

Automatic shutdowns are often caused by power-saving settings, inconsistent power supply, or signal loss. Please check the OSD timer settings first. Troubleshooting Steps: Check OSD Menu Settings (Most Common): Navigate to the [Setup Menu]. Locate [Auto Power Off] or [Sleep Timer] and ensure they are set to [Off]. Also, verify ...

What to do when the screen image is pixelated or blurry?

Blurry images are typically caused by an incorrect resolution or scaling setting. Ensure your computer is set to the monitor's Native Resolution. Troubleshooting Steps: Set to Native Resolution: Windows: Right-click desktop > [Display settings] > [Display resolution]. Choose the one labeled (Recommended). macOS: Go to [System Sett...

What to do when there is no display on my monitor?

Check the power LED first. If the LED is on but there's no image, the issue is likely related to the input signal or cable connection rather than power. Troubleshooting Steps: 1. Check the Power LED Status LED is OFF: Ensure the power cable is firmly seated and the physical power switch (if available) is turned on. Try a different wall out...

Why can’t my monitor automatically detect a source?

The "Auto Detect" feature is disabled by default on many models. You must manually enable it within the OSD menu to allow the monitor to switch between active ports automatically. Step-by-Step Instructions: Press the physical button to call up the OSD Main Menu. Navigate to the [Input Select] section. Locate [Auto Detect] at the bo...

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