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"...

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.

What to do if there is shadow or double image on screen?

This can be caused by a long cable or docking stations.   Longer cables may be prone to ghosting, lines, double images, or poor focus.  The improper shielding of the cables can cause a shadowing or ghosting effect also.    We recommend to check the video cable and, if possible, use HDMI Premium certificate cable for long distance connectio...

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.

How to check graphics card drivers in Windows?

1.Under "Control Panel", open "Device Manager". 2. Find the Display adapters and double click on it then double click on the device shown: 3.Select Driver tab, this will list the Driver version.

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 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...

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...

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 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 ...