Turn off FreeSync/G-Sync temporarily to see if the issue persists, or update your graphics card drivers. Conclusion Keeping your Samsung Odyssey G40B

The Samsung Update app is an official utility that can simplify the process of updating your monitor's driver and other Samsung software on your PC.

Alternatively, go to > Monitors , right-click your Generic PnP monitor, and select Update driver > Browse my computer to select the unzipped folder. Troubleshooting Update Issues

Ensure the display is identified as the .

The Samsung Odyssey G40B is a 40-inch gaming monitor in Samsung’s Odyssey family. To get the best performance (optimal resolution, refresh rate, color calibration, and feature support like HDR, Adaptive Sync/FreeSync/G-SYNC compatibility), you should use the correct graphics drivers and monitor drivers/firmware where available, plus configure OS and GPU settings properly.

: Visit the official Samsung Support Download Center.

Hope this helps anyone struggling to get their G40B fully set up!

Here is the correct way to find and install it:

If you are a competitive gamer (CS:GO, Valorant, Overwatch), running the correct driver ensures that Windows unlocks the full resolution and refresh rate options without you having to manually create "Custom Resolutions" in NVIDIA or AMD control panels. It also fixes handshake issues where the monitor might default to 60Hz on wake-up.

Open your GPU control panel (NVIDIA Control Panel or AMD Software) to re-enable G-Sync or FreeSync if they were reset during the update. Troubleshooting Common Update Issues

Refinements to the 240Hz handling and HDR10 performance. Step 1: Download Official Drivers and Firmware

Do not turn off the monitor or unplug it during the update process.

While monitors are traditionally "plug-and-play" devices, high-performance gaming monitors like the Odyssey G4 G40B rely heavily on precise timing and communication with Windows and your GPU. Samsung provides two distinct types of software updates for this monitor:

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