The ASUS PB278Q is a 27-inch WQHD monitor, not a graphics card, so its monitor driver helps Windows identify the display rather than replacing your GPU driver. Installing the appropriate ASUS monitor package can provide device-specific identification and, when included, a color profile for supported display settings.

Key Features

• Accurate monitor identification: Allows Windows to recognize the ASUS PB278Q by its model name instead of displaying a generic monitor label.
• Display configuration information: Provides monitor-specific information that Windows can use alongside your graphics driver when configuring the screen.
• Color profile support: If the package includes an ICC or ICM profile, it can serve as a starting point for color-managed applications. It does not replace individual display calibration.
• Works alongside your graphics driver: The monitor package complements the Intel, AMD, or NVIDIA driver responsible for video output. Reaching the PB278Q’s native 2560 × 1440 resolution also depends on your graphics hardware, connection, and settings.

How to Install

1. Check your Windows version. Before downloading, confirm that the package lists compatibility with your system. For Windows 11, Windows 10, Windows 8, or Windows 7, use the matching package when one is available; do not assume an older monitor driver is officially supported on every newer release.

1. Download and extract the driver. Save the ASUS PB278Q monitor package to an accessible folder. If it arrives as a compressed archive, extract its contents before installation.

1. Use the included installer or Device Manager. Run the setup program if one is provided. Otherwise, open Device Manager, expand Monitors, right-click the entry corresponding to your PB278Q, and select Update driver.

1. Locate the extracted files. Choose Browse my computer for drivers, point Windows to the extracted folder, and follow the prompts. If Windows reports that the best driver is already installed, check the package instructions before attempting a manual INF installation.

1. Verify the display settings. Restart if prompted, then check the monitor name and resolution in Windows display settings. If a color profile was supplied, confirm its association in Color Management. For missing resolutions, flickering, or connection problems, also check your cable and GPU driver.

Common Issues and Fixes

• Install fails or driver won’t load: Windows may block the ASUS PB278Q monitor INF if a newer generic driver is present. Run the package as administrator, then use Device Manager > Monitors > ASUS PB278Q > Update driver > Browse my computer > Let me pick, and select the ASUS entry manually.
• Device not detected / shows as Generic PnP Monitor: Confirm the monitor’s input source matches the connected port (DisplayPort, HDMI, or DVI), reseat the cable, and update your GPU driver. In Device Manager, scan for hardware changes.
• Version conflicts or wrong resolution/color: Remove old ASUS monitor entries and stale ICM/color profiles, reboot, then reinstall the latest PB278Q driver package and set native 2560×1440.