That means you are trying to use a display setting that is not supported by the monitor. Monitors run in a native mode which is the preferred setting. As an example try 1280 by 1024 is common. If you look at your monitor manual it should tell you what the setting should be.
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That means you are trying to use a display setting that is not supported by the monitor. Monitors run in a native mode which is the preferred setting. As an example try 1280 by 1024 is common. If you look at your monitor manual it should tell you what the setting should be.