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Samsung G9 flickering (Fixed 2023)

Samsung G9 flickering

Flickering is a disturbance in the cyclic refresh rate of a screen or the brightness of video display devices visible to human eyes. Flickering can occur in any video display device, such as monitors, TVs, and laptops.

Interestingly, compared to other monitor models, Samsung’s G9 suffers from this problem where the screen flickers between its usual brightness and a dim/interlaced image.

Samsung Odyssey monitors are designed for extreme gaming and therefore are especially prone to flickering. But anyhow, most of the time, this is not a significant issue and has something to do with PC settings.

These might be the reasons behind Samsung G9 Monitor Flickering:

  1. Due to pixel walk (Check it out here)
  2. Slow screen refresh rate (solved by selecting a higher refresh rate in the display settings)
  3. A loose power cable (solved by securing it properly in the ports)
  4. Multiple power cables fitted in a single power extension
  5. A worn-out display cable such as VGA, HDMI, DVI, or DP (Buy a new one)
  6. Loose or poorly fitted display cables
  7. Problem with graphic card drivers
  8. Damage power supply inside the monitor (needs replacement by taking it to a lab)

Now that we know what may cause the Samsung G9 monitor to flicker let’s fix them.

Fix 1: Calibrate Display

Pixel walk, more commonly known as pixel inversion, occurs when the display’s voltage alternates between positive and negative cycles, manifesting as visual artifacts like flicker during regular use, including gaming, watching videos, etc.

Inversion artifact tests can check pixel walk. This test will find blurred or flickering areas for you. Once you are sure your monitor has this problem, Go to Display Calibration and Characterization website and Fix the problem for free. All you need to do is select your operating system and follow the procedure.

Fix 2: Increase the refresh rate of your Monitor

Do you know that all monitors constantly flicker? It’s our eyes that are unable to see it when the refresh rate is high. That is why moving black lines appear when you try to capture an image of your screen with a camera.

The monitor’s refresh rate is the times it revamps the LEDs in a second. A normally functioning screen refreshes itself faster, so you do not notice it!

That is why simply increasing the refresh rate of your monitor might solve your problem. Here is how to do it,

Step 1: Right-click on your desktop and select Display Settings

Step 2: Scroll Down to the end and select Advanced Display Settings

Step 3: Select Refresh Rate and Select a higher refresh rate (however, it is limited by the model of your monitor; some have a higher refresh rate of up to 120 Hz while others are limited to 60 Hz).

You need to test each refresh rate, restart the computer and see if the flickering has stopped. If it doesn’t stop the flickering, try a higher one.

It is also essential to know that G9 Odyssey monitors have a recommended screen refresh rate Hertz (Hz) setting. Check the details here: Samsung Odyssey G9 manual.

Fix 3: Fix Power Supply Issues

Similar to monitors, electricity has cycles. In the US, it is 60 Hz per second and is adjusted for the appliances to work flawlessly.

Therefore, Inspect your power cable because if it is loosely fitted or if its female end is worn out/damaged, it will fail to deliver proper electric current cycles. This will cause your Samsung G9 Odysessy monitor to flicker.

If your power cable is working perfectly, check your main electricity board. It has a meter which shows the frequency of electricity. You can also buy a frequency meter to check the frequency of your electricity if your board lacks one.

Another vital reason the monitor flickers is that many devices are plugged into the same power outlet. The reason behind this is electric flux from other devices. These electric fluxes can distort the frequency of your monitor’s refresh rate.

To solve this problem, plug out other devices and ensure they are powered by an extension kept at a distance.

Fix 4: Examine Input Cables

Faulty HDMI, DisplayPort (DP), VGA or DVI, and display cable may cause your monitor to flicker.

The First step is to look for visible damage to the display cables and their ports.

Next, carefully examine both ends of the cable and inspect the pins. A damaged pin or head can be the cause of the flicker. Also, look at whether they are adequately secure in place or not. A loose connection must be snugly fitted.

If your screen is still flickering, use a different port and cable, e.g., replace the DP port with HDMI or vice versa.

Fix 5: Update Graphic Card Drivers

Another important reason for your monitor screen to flicker might be bad graphic card drivers. You must ensure the drivers are fully installed, functional, and updated.

You can check your graphic card drivers by,

Manually checking Drivers
  1. Open Control Panel
  2. Select Display Adapters
  3. Select your Graphic Card
  4. Click on drivers
  5. Check if they are working fine and up to date
Checking automatically

If not, you can automatically or manually update the graphic card drivers if you have pre-saved drivers on your computer.

Sometimes Windows 10 automatically loses connectivity to the display due to a bug. In such cases, press the Windows key + Ctrl + Shift + B on your keyboard, and it will restart the video driver.

Accessories such as USB devices, speakers, and printers may also cause a monitor screen to flicker.

Please contact Samsung sales & support if nothing works for you. They will also guide you regarding warranty policy and replacement.


  1. The most common cause of Samsung G9 monitor flickering is pixel walk, I think it is a firmware-fixable issue, but unfortunately, we’re all at Samsung’s mercy to issue a firmware fix.
  2. A slow screen refresh rate needs changes in display settings, and you must select a higher refresh rate until the flickering stops.
  3. On the other hand, a loose or damaged display cable may be the only issue. The display cable must be connected securely and should be undamaged.

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