The BenQ XL2420T is a gaming monitor, and its monitor driver helps Windows identify the display and use the supplied display information. Although sometimes listed under GPU downloads, this package is separate from your graphics card driver and does not replace it. When downloading for Windows 11, 10, 8, or 7, check that the package supports your Windows version.

Key Features

• Monitor identification: Allows Windows to recognize the BenQ XL2420T by its model name rather than relying solely on a generic monitor entry.
• Display configuration information: Supplies monitor-specific details that help Windows and your graphics driver handle supported display modes.
• Color profile support: If the package includes an ICC or ICM profile, it can provide a monitor-specific starting point for color management in compatible applications.
• Works alongside your GPU driver: Complements your graphics software without changing GPU performance or adding display capabilities beyond what your monitor, connection, and graphics card support.

How to Install

1. Check compatibility before downloading. Review the package information for your installed version of Windows 11, 10, 8, or 7. Do not assume an older monitor driver is explicitly supported on every newer Windows release.

1. Connect and detect the monitor. Connect the XL2420T to your computer, switch it on, and confirm that Windows displays an image. If you use multiple monitors, identify the BenQ display before updating its driver.

1. Extract the download. Unzip the package to an accessible folder. If it includes an installer, follow its instructions; otherwise, locate the folder containing the monitor’s INF file.

1. Install through Device Manager. Expand Monitors, right-click the relevant display, and select Update driver. Choose Browse my computer for drivers, point Windows to the extracted folder, and follow the prompts. Menu wording may vary by Windows version.

1. Verify your display settings. Restart if prompted, then check the resolution and refresh rate in Windows display settings. Available refresh rates depend on the cable, port, graphics hardware, and GPU driver—not just the monitor driver.

If Windows already identifies the display correctly and offers the expected modes, a manual driver update may not be necessary. Avoid forcing an incompatible package or bypassing driver-signature warnings.

Common Issues and Fixes

• Install fails or Windows rejects the INF: Extract the downloaded ZIP first, right-click the installer/INF and run as administrator. If Windows says the best driver is already installed, use Device Manager > Monitors > BenQ XL2420T > Update driver > Browse my computer and point to the extracted folder.
• Monitor not detected as BenQ XL2420T: Confirm the video cable is seated and use dual-link DVI or DisplayPort for 120 Hz; avoid cheap adapters. Power-cycle the monitor, then in Device Manager select Action > Scan for hardware changes. It may appear as Generic PnP Monitor until the BenQ INF is applied.
• Version/color-profile conflicts: Remove any older BenQ XL2420T driver and delete stale ICM profiles in Color Management, reboot, then install the current package. Avoid mixing files from different BenQ downloads.