Second Monitor "Input Not Supported"

Posted by Drew on Super User See other posts from Super User or by Drew
Published on 2012-04-03T16:07:33Z Indexed on 2012/04/03 17:34 UTC
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multiple-monitors

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integrated-graphics

I have two identical monitors (new Acer s211hl) with a native resolution of 1920x1080. When enabling dual monitor support in Windows 7, the primary monitor works as expected, but the second monitor says, "Input not Supported" and fails to display anything.

If I change the resolution of the second monitor to 1440x900, it works as expected. Likewise, if I set it to 1920x1080 with a refresh rate of 30hz, the monitor displays video. However, neither of these are solutions, because the output looks very blurry, and the content is stretched.

I am using the following hardware:

Monitors: Acer s211hl
Motherboard: Asus F1A75M-Pro
CPU/GPU: AMD A8-3850 with integrated Radeon HD 6550D graphics

I suspect that there is probably an issue with the integrated graphics or motherboard not being able to output to two 1920x1080 monitors, but I am hoping for official confirmation.

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