Dell UltraSharp U2421HE User Manual

Also see for UltraSharp U2421HE: Service manual

Appendix | 61Non-Dell computerIn Windows Vista, Windows 7, Windows 8 or Windows 8.1:1 For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to classic desktop.For Windows Vista and Windows 7, skip this step.2 Right-click on the desktop and click Personalization.3 Click Change Display Settings.4 Click Advanced Settings.5 Identify your graphics controller supplier from the description at the top of the window(e.g. NVIDIA, AMD, Intel etc.).6 Refer to the graphic card provider website for updated driver (for example,www.amd.com or www.nvidia.com).7 After installing the drivers for your graphics adapter, attempt to set the resolution to1920 x 1080 (U2421HE)/2560 x 1440 (U2721DE) again.In Windows 10:1 Right-click on the desktop and click Display Settings.2 Click Advanced display settings.3 Click Display adapter properties.4 Identify your graphics controller supplier from the description at the top of thewindow (e.g. NVIDIA, AMD, Intel etc.).5 Refer to the graphic card provider website for updated driver (for example,www.amd.com or www.nvidia.com).6 After installing the drivers for your graphics adapter, attempt to set the resolution to1920 x 1080 (U2421HE)/2560 x 1440 (U2721DE) again.NOTE: If you are unable to set the recommended resolution, please contact themanufacturer of your computer or consider purchasing a graphics adapter that supportsthe video resolution.

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