Integrated Dell Remote Access Controller 9 User's Guide

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Supported screen resolutions and refresh rates

The following table lists the supported screen resolutions and corresponding refresh rates for a Virtual Console session running on the managed server.

Table 1. Supported screen resolutions and refresh ratesSupported screen resolutions and refresh rates
Screen Resolution	Refresh Rate (Hz)
720x400	70
640x480	60, 72, 75, 85
800x600	60, 70, 72, 75, 85
1024x768	60, 70, 72, 75, 85
1280x1024	60
1920x1200	60

It is recommended that you configure the monitor display resolution to 1920x1200 pixels.

Virtual Console supports a maximum video resolution of 1920x1200 at 60 Hz refresh rate. In order to achieve this resolution, following conditions are required:

KVM / monitor attached to VGA that supports 1920x1200 resolution
Latest Matrox video driver (for Windows)

When a local KVM / Monitor with maximum resolution below 1920x1200 is connected to either VGA connector, it will reduce the maximum resolution supported in virtual console.

iDRAC virtual console leverages the onboard Matrox G200 graphics controller to determine the maximum resolution of the attached monitor when a physical display is present. When the monitor supports 1920x1200 or greater resolution, the virtual console supports 1920x1200 resolution. If the monitor attached supports lower max resolution (like many KVMs), the virtual console max resolution is limited.

Maximum virtual console resolutions based on monitor display ratio:

16:10 monitor: 1920x1200 will be the max resolution
16:9 monitor: 1920x1080 will be the max resolution

When a physical monitor is not connected to either VGA port on the server, the OS installed will dictate the available resolutions for virtual console.

Maximum virtual console resolutions based on host OS without physical monitor:

Windows: 1600x1200 (1600x1200, 1280x1024, 1152x864, 1024x768, 800x600)
Linux: 1024x768 (1024x768, 800x600, 848x480, 640x480)

NOTE: If a higher resolution through virtual console is required when physical KVM or monitor is not present, a VGA Display Emulator dongle can be leveraged to mimic an external monitor connection with a resolution up to 1920x1080.

NOTE:If you have an active Virtual Console session and a lower resolution monitor is connected to the Virtual Console, the server console resolution may reset if the server is selected on the local console. If the system is running a Linux operating system, an X11 console may not be viewable on the local monitor. Press <Ctrl><Alt><F1> at the iDRAC Virtual Console to switch Linux to a text console.