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 do color calibration with my monitor?

Please refer to this FAQ, find "Calibrate your display" section and follow the instruction.

What to do if there is flickering image with my monitor?

Check the monitor: Please do memory recall. Please refer to this FAQ Check device setting: Please check and set to recommended refresh rate.  You can refer to this video. https://www.youtube.com/watch?v=sAkbjPiLNcE   If possible, please connect monitor to another device with different input.   If above doesn’t help, please contact ViewSo...

How to clean LCD display?

General Precautions Make sure the monitor is turned off and the power cable is unplugged from the power outlet. Never spray or pour any liquid directly onto the screen or case. Doing so could damage your monitor. Dust or hard materials may scratch the screen. Please make sure the cleaning cloth is free of any debris. Clean and dry the m...

Why does image persistence occur with my LCD monitor?

Image persistence (or image retention) is a result of a stationary image being displayed for a long period of time.    <Correction>   Turn off the screen for hours.   <Prevention>   1. Set the display to turn off after a few minutes of system idle under ”Power & Sleep “ (Win10) or “Battery” (Macbook).      2. Turn off the monitor when ...

How to set the maximum resolution on your LED monitor?

Adjust the display resolution to the "Recommended" setting in Windows to ensure optimal clarity and eliminate black borders.   Adjust System Resolution: Right-click on the desktop and select [Display settings]. Under the [Display resolution] dropdown, select the value labeled [(Recommended)]. Disable Hardware Overscan: Press ...

Why is the "Auto Image Adjust" function grayed out in the OSD menu?

This is a feature, not a bug. When using a digital connection (HDMI, DisplayPort, or USB-C), the monitor automatically locks onto the signal with pixel-perfect precision, rendering manual adjustments unnecessary. Detailed Explanation: Digital vs. Analog Signals: * Analog (VGA): These signals may require "Auto Image Adjust" to correct ima...

Does ViewSonic provide Linux drivers for monitors?

No dedicated driver is required. ViewSonic monitors follow VESA standards, allowing Linux to automatically recognize the display via EDID. Plug and Play: Simply connect your monitor; the Linux kernel will automatically detect the hardware. Adjust Display Settings: Navigate to your distribution's [Settings] > [Displays] to configur...

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 set maximum resolution for my monitor?

Please refer to this FAQ section 1 and set to recommended display resolution.