Ensure you are using a DisplayPort 1.2 (or higher) or HDMI 2.0 cable. Older cables lack the bandwidth.
| Scenario | Action | |----------|--------| | Monitor works perfectly at 240Hz with no flicker | – INF and firmware not needed. | | Occasional black screen or VRR flicker | Update firmware – not the INF driver. | | Device Manager shows “Generic Monitor” | Install INF driver – cosmetic fix only. | | HDR looks washed out | Adjust Windows HDR calibration tool – not driver related. |
The G40B supports HDR10 but is only VESA DisplayHDR 400 (peak ~450 nits). After a clean driver install: samsung odyssey g40b drivers upd
The monitor displays "No update files found on your USB device"
Even after installation, Windows may revert to the generic driver. To force the change: Ensure you are using a DisplayPort 1
Download the latest monitor driver (.zip file). Install the Driver: Extract the ZIP file. Open Device Manager on your PC. Expand "Monitors" and right-click on your Samsung monitor.
Without this driver, Windows defaults to a “Generic PnP Monitor,” which may limit refresh rate options and disable advanced color management. | | Occasional black screen or VRR flicker
Samsung does not provide Linux drivers. However, using edid-decode and xrandr , you can manually set 240Hz. Install read-edid and force the mode:
Copy the firmware file (the extension will be .img or .bin ) directly to the of your USB drive. Do not place it inside any folders. Execute the Firmware Update Turn off your Samsung Odyssey G40B monitor.
For an optimal experience with your Odyssey G40B, it's helpful to know the different types of software that work together to make it perform at its best. The monitor uses a few key components to function correctly:
Before downloading, it is vital to understand the two types of software updates available for the G40B: Software Type What It Does How It Is Installed