Out of Range problem with LED 19 inch viewsonic monitor
What is the source for the signal to the monitor? First, if the source is a computer, was the computer previously connected to a CRT monitor? If this was the case, you may have the wrong refresh rate as well as the wrong resolution being sent to the video port. Reconnect the computer to the old monitor (if possible) and reset the refresh rate to 60 Hz.
Next connect the monitor to the computer with both devices off. Then turn on the monitor and set it to the correct input (if needed). Then turn on the computer. Most versions of Windows should determine the best resolution for the monitor. (Some Unix versions and recent versions of the Mac OS will also automatically find the correct resolution.) If you are still getting the out of range message, you need to change the video resolution with a different monitor connected and then retry. Always turn on the monitor first.
For additional support, please add a comment with the specific monitor and source that you have. In a few cases, the video card/on-board video may not be able to output the correct resolution or lose the correct setting when the monitor or computer "sleep".
I hope this helps.
Cindy Wells
(I've seen most "out of range" messages with several TVs that were connected to computers and turned on and set to the computer input after the computer booted up.)
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