ViewSonic Monitor Not Working: 4 Troubleshooting Steps

When it comes to computer monitors, ViewSonic is certainly one of the most respected brands.

The ViewSonic brand is well-known for quality monitors, and ranks right up there with brands like Acer, Asus, BenQ, and many others. Whether you require a monitor for the most basic tasks or for heavy-duty applications like gaming, your display needs will surely be accommodated by ViewSonic.

Like any piece of PC hardware, ViewSonic monitors have their fair share of issues.

For this guide, we share some troubleshooting steps for “ViewSonic monitor not working” issues that many end-users have experienced.

viewsonic monitor not working

1. Check the Physical Connection

Before you modify your device settings and update the drivers, make sure that you check the physical connection from the monitor to your computer or laptop’s video port.


The wire connection might just be loose, which is why the monitor doesn’t display anything. In addition, make sure that the monitor is plugged to a wall outlet and is receiving power. While you’re at it, you can try switching out the DVI or HDMI cable because the problem might be due to a bad cable.


2. Update the Video Driver

If the monitor is not working, it’s always a good idea to check if you are running the latest drivers. If the problem indeed lies with the display driver, this can be easily solved by updating to the latest drivers.


However, updating drivers is not as clear-cut as you might expect. You still need to find the model number of your monitor, find a source for said drivers, and find the latest version. If you think that it sounds a bit complicated, it is.Fortunately, there is no shortage of tools that will allow you to automatically update your monitor drivers. One such tool is DriverSupport.


To update your device drivers using DriverSupport, follow the steps below:

  1. Give Driver Support | ONE a try today! and install on your computer.
  2. Open the software and perform a quick scan. DriverSupport will list all the potential drivers that need to be updated which should include your monitor drivers.
  3. Click the green “Fix it!” button to automatically download and install the drivers. Register for a premium account once you are prompted.


DriverSupport is a handy tool for downloading and installing the latest driver updates.


3. Try the Monitor with Another Computer

If the ViewSonic monitor is not working, there’s a good chance that there’s something wrong with the PC itself. This can be a tricky issue to troubleshoot since you will be needing another computer for testing.


Basically, you just have to hook up the monitor to another computer to make sure that there’s nothing wrong with your hardware, especially the pin connector.


4. Roll Back to a Previous Driver Version

Sometimes, the latest display drivers can cause issues which can result in the monitor to stop working.

If you are on Windows 10, listed below are the steps to roll back to a previous version of your video driver:

  • Call the Run Box by pressing the Windows key + R key.
  • On the Run Box, type devmgmt.msc and press Enter.
  • On the Device Manager, look for the Display Adapters section and right-click on the display adapter software and select Properties.
  • Under the Driver tab, click the Roll Back Driver button and follow the on-screen instructions.
  • Once complete, you should be prompted to restart your PC.
  • This tip is particularly helpful if you are running a two-monitor setup.

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  1. Randy Overholt November 28, 2020 at 9:51 am

    I can’t switch between PCs. Sometimes it works, sometimes it doesn’t! It’s very frustrating. All the connections and devices are all the same every time -nothing changes!

    When I press the 2 button, it’s supposed to switch to the other PC, instead, it pops up the OSD. I turned off OSD and the OSD Locked message comes up!

  2. William George Sotos December 4, 2020 at 9:21 am

    My new VG1655 monitor is cycling the input on and off when connected using the USB-C connection with my Dell XPS-15 Laptop. This problem is not addressed in the article. The monitor works fine when connected via the HDMI input using power from the laptop or external power brick.

  3. Charlotte E Johnson January 2, 2021 at 4:58 pm

    My View Sonic doesn’t work on my new laptop with Windows 10. There’s no rollback option because it’s new.

  4. Matt G January 20, 2021 at 8:14 am
  5. Matt G January 20, 2021 at 8:21 am

    I checked the user guide and here’s what I found:

    Power Delivery – Further Information
    Due to the VG1655’s design please note:
    • The first connected device will be the main input signal.
    • When a Type C port recognizes an external device as a power adapter, it will only
    distribute the power. It will NOT display the input signal.
    • Only when one of the Type C ports is recognized as a power adapter can the
    other one deliver two-way power.
    If a laptop is connected first to the VG1655, then a mobile phone is connected
    second, the mobile phone’s battery will not be charged as neither Type C port
    recognizes the connection as being connected to a power adapter.
    NOTE: If you want to display the mobile phone’s screen, you must unplug the
    Type C cable connected to the laptop.
    If a mobile phone is connected first to the VG1655, then a laptop is connected
    second, the mobile phone’s battery will be charged as one of the Type C ports is
    recognized as being connected to a power adapter.
    NOTE: If you want to display the laptop screen, you must unplug the Type C
    cable connected to the mobile phone.
    Due to the VG1655’s design, do not connect two laptops or one laptop and a
    desktop computer at the same time. This can cause power distribution conflicts,
    resulting in flashing screens or the forced shutdown of the laptop(s).
    • If the laptop has a Type C port, please connect via Type C to the VG1655.
    • Do not connect the other Type C port of the VG1655 to another laptop or
    desktop computer via Type A and HDMI at the same time.
    • If the laptop only has HDMI and Type A ports, please connect via HDMI and
    Type A to Type C to the VG1655.
    • If the power output of the Type A port of the laptop is not greater than
    10W, please use our power adapter to connect to the VG1655.
    • Do not connect the other Type C port of the VG1655 to another laptop or
    desktop computer at the same time.

    Does any of that help?

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