What to do when no video by using HDMI port?

If you are experiencing problems using HDMI input, suggest do the followings:   Please check below on monitor:   Make sure the correct HDMI input is selected in OSD. Turn on the monitor first then PC.   Please check below on PC:    Test the monitor on a different computer with a HDMI port. Replace another HDMI cable. If...

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 landscape and portrait Mode?

Several ViewSonic LCD panels support both Landscape and Portrait modes.  If your LCD panel supports this feature, you can switch modes by turning the screen as shown in the diagram below. To change the image on the Windows Desktop, follow instructions below: Open the Start menu and click "Control Panel." Click "Adjust Screen Resolution"...

How to do color calibration with my monitor?

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

Is there Linux drivers for my monitor?

No, as Linux system should automatically identify and recognize the monitor.

Should I install Windows 10 drivers for my monitor?

ViewSonic plug and play monitors do not require a proprietary Windows 10 driver to be installed.   Instead, Windows 10 will automatically read the EDID information stored in the monitor and install Generic PNP Monitor drivers to enable its full resolution capabilities.   The only difference is you will see monitor model name in Device Manag...

How to change refresh rate in windows 10?

Please refer to the video on how to change: https://www.youtube.com/watch?v=sAkbjPiLNcE

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 ...

Why is there high pitched noise from my monitor?

In normal operating conditions, there might be normal electric current sound came monitor which should not impact on your usage.   If this did not occur in the past but appeared recently, please contact ViewSonic service center.

Where to find serial number of the monitor?

The serial number can usually be found on the back or bottom of your product and is either 10 or 12 digits long. The serial number can also be found on the original box of the unit.